{"title":"Sea to Summit Sleeping Systems","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SLEEPINGBAGS_356da0c4-da13-4b27-a23d-18d7a15e1816.jpg?v=1715332042\" alt=\"\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SLEEPINGBAGS_356da0c4-da13-4b27-a23d-18d7a15e1816.jpg?v=1715332042\"\u003e\u003c\/p\u003e\n\u003cp\u003eUltralight, compact and versatile, Sea to Summit's latest range of sleeping bags and liners are built for all seasons, terrains and adventures. From ultralight hiking to car-camping comfort, find the sleeping bag that really fits you–and your adventure.\u003c\/p\u003e\n\u003cp\u003eThe 2024 technical liners with a Mummy shape now feature shoulder openings and a drawcord in the foot section, which complement the innovative Free-Flow zippers found on their mummy sleeping bags. You can easily reach your arms through the openings or sleeping bag zippers to enjoy a cup of coffee in your tent. Additionally, you can utilise the shoulder openings for extra ventilation to adjust your temperature. The liner also has a base drawcord that can be opened, allowing for simpler middle-of-the-night bathroom breaks.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","products":[{"product_id":"sea-to-summit-comfort-plus-insulated-mat","title":"Sea to Summit Comfort Plus Insulated Mat","description":"\u003cp\u003eThe Sea to Summit Comfort Plus Insulated Mat is an insulated, lightweight inflatable camping mat featuring dual layer Air Sprung Cell™ technology. \u003c\/p\u003e\n\u003cp\u003eProviding the most effective system for fine-tuning the level of comfort available in any air mattress today, the \u003cspan\u003eSea to Summit\u003c\/span\u003e\u003cspan\u003e Comfort Plus Insulated Mat offers t\u003c\/span\u003ewo independent high-resolution cell layers that give excellent support by distributing your body weight and shape over more cells. The two layers are also offset for more uniform insulation and cushioning. Because the two layers can be pressurised independently, the top layer can be inflated to your personal comfort, while maintaining a high-pressure base layer for protection from rough or uneven terrain. Both layers can be adjusted independently using the fine tune valve to get just the right level of softness and support.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor the added insulation, Sea to Summit use Exkin® Platinum, a quiet non-woven fabric, to reflect radiant heat loss back to the user and Thermolite® insulation to prevent convective heat loss between your body and the ground.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eExkin Platinum® fabric and Thermolite® insulation are combined to prevent radiant and convective heat loss\u003c\/li\u003e\n\u003cli\u003eDual layer design ensures a level of built-in redundancy; if you do end up with a puncture in one layer of the mattress, the other layer remains fully functional\u003c\/li\u003e\n\u003cli\u003eMulti-function valve for easy inflation, deflation and fine tuning of air pressure\u003c\/li\u003e\n\u003cli\u003e40D rip-stop nylon face fabric offers the right balance between weight and durability\u003c\/li\u003e\n\u003cli\u003eSea to Summit's TPU lamination process - one used in the medical and aeronautical industries but unique to the outdoor industry - is vastly superior to the roll-to-roll lamination process that is commonly used in outdoor products at present. The TPU bonds better and more consistently, virtually eliminating delamination issues\u003c\/li\u003e\n\u003cli\u003eComes with a quality stuff sack, a repair kit containing six self adhesive patches for repairing punctures in the field, and a spare silicone one-way valve flap\u003c\/li\u003e\n\u003cli\u003eSea to Summit’s Comfort Plus Insulated mats should be used right side up. A Sea to Summit logo and size graphic are printed on the side of the mat that should be up when in use\u003c\/li\u003e\n\u003cli\u003eExtended storage instructions: mat should be laid flat, folded as few times as possible with valves open\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eLength\/Width: Regular 183 x 55 cm | Large 201 x 64 cm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eRolled Size: Regular Ø12 x 23cm | Large Ø12.5 x 26cm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eThickness: 6.3cm\u003c\/li\u003e\n\u003cli\u003eR Value 4\u003c\/li\u003e\n\u003cli\u003e# of Air Sprung Cells: Regular 548 | Large 696\u003c\/li\u003e\n\u003cli\u003eWeight: Regular 845g | Large 1045g\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eRelated Collections\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFor more sleeping mats from Sea to Summit view our \u003ca href=\"https:\/\/rockrun.com\/collections\/sea-to-summit-sleeping-mats\" title=\"Sea to Summit Sleeping Mats Collection\"\u003eSea to Summit Sleeping Mats Collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eSee more harnesses in our \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-mats\" title=\"Sleeping Mats Collection\"\u003eSleeping Mats Collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eSee more products in our \u003ca href=\"https:\/\/rockrun.com\/collections\/sea-to-summit\" title=\"Sea to Summit Collection\"\u003eSea to Summit Collection \u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":41322111467701,"sku":"SS-SM-CPIR","price":120.0,"currency_code":"GBP","in_stock":true},{"title":"Large","offer_id":41322111762613,"sku":"SS-SM-SSCPI-L","price":175.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/Sea-to-Summit-award-winning-Comfort-Plus-Insulated-Air-Sleeping-Mat2.webp?v=1760714619"},{"product_id":"sea-to-summit-ultralight-insulated-mat","title":"Sea to Summit UltraLight Insulated Mat","description":"\u003cp\u003eThe Sea to Summit UltraLight Insulated Mat is an insulated, super lightweight inflatable camping mat featuring single layer Air Sprung Cell™ technology. \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eConstructed as a single layer of medium resolution cells, the \u003c\/span\u003eAir Sprung Cells™ in the Sea to Summit UltraLight Insulated Mat give you the lightest and smallest packed-volume mat without compromising comfort. \u003cspan\u003eFor the added insulation, Sea to Summit use Exkin® Platinum, a quiet non-woven fabric, to reflect radiant heat loss back to the user and Thermolite® insulation to prevent convective heat loss between your body and the ground.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAll Sea to Summit sleeping mats come with a quality stuff sack, a repair kit containing six self adhesive patches for repairing punctures in the field, and a spare silicone one-way valve flap.\u003c\/p\u003e\n\u003ch4\u003eSizing\u003c\/h4\u003e\n\u003cp\u003eLength\/Width: Small 168 x 55 cm | Regular 183 x 55 cm\u003c\/p\u003e\n\u003cp\u003eRolled Size: Small 12.5 x 24 cm | Regular 12.5 x 24 cm\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e3.1 R-Value is sufficient for late spring to early fall use.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExkin Platinum® insulation reflects your radiant heat back to you, while Thermolite® insulation prevents convective heat loss.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLighter, quieter and durable 30D\/40D face fabric with Sea to Summit’s liquid-extruded lamination is extremely reliable.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuick and easy inflation, deflation and adjustment is made possible by our multi-function valve and supplied Airstream Pump\/stuff sack.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnti-microbial treatment added to the TPU lamination formula prevents internal mold growth.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePillowLock system prevents your Sea to Summit Aeros Pillow from slipping.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eComes with a stuff sack which doubles as a pump, a repair kit with six self-adhesive patches and a spare valve insert.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eDimensions: Small 168 x 55 cm | Regular 183 x 55 cm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eRolled Size: Small 12.5 x 24 cm | Regular 12.5 x 24 cm\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eR Value: 3.1\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eWeight: Small 430g | Regular 480g\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eRelated Collections\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFor more sleeping mats from Sea to Summit view our \u003ca title=\"Sea to Summit Sleeping Mats Collection\" href=\"https:\/\/rockrun.com\/collections\/sea-to-summit-sleeping-mats\"\u003eSea to Summit Sleeping Mats Collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eSee more harnesses in our \u003ca title=\"Sleeping Mats Collection\" href=\"https:\/\/rockrun.com\/collections\/sleeping-mats\"\u003eSleeping Mats Collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eSee more products in our \u003ca title=\"Sea to Summit Collection\" href=\"https:\/\/rockrun.com\/collections\/sea-to-summit\"\u003eSea to Summit Collection \u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Small","offer_id":41322071425205,"sku":"SS-SM-SSULI-S","price":79.95,"currency_code":"GBP","in_stock":false},{"title":"Regular","offer_id":41322067886261,"sku":"SS-SM-ULIR","price":99.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/Untitleddesign_5.jpg?v=1753451676"},{"product_id":"sea-to-summit-ultralight-mat-regular","title":"Sea to Summit UltraLight Air Mat (Regular)","description":"\u003cp\u003eThe Sea to Summit Ultralight Air is a \u003cspan\u003elightweight and small packed-volume camping mat that doesn't compromise comfort.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing\u003c\/span\u003e a single layer of medium resolution Air Sprung Cells™, the Sea to Summit UltraLight Air is ideal when going fast and light, and when getting a great night's sleep is essential for the next day's adventure. All Sea to Summit sleeping mats come with a quality stuff sack, a repair kit containing six self adhesive patches for repairing punctures in the field, and a spare silicone one-way valve flap.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1.1 R-Value is designed for warm-weather use.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLighter, quieter and durable 30D\/40D face fabric with Sea to Summit’s liquid-extruded lamination is extremely reliable.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuick and easy inflation, deflation and adjustment is made possible by our multi-function valve and supplied Airstream Pump\/stuff sack.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePillowLock system prevents your Sea to Summit Aeros Pillow from slipping.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnti-microbial treatment added to the TPU lamination formula prevents internal mold growth.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePillowLock system prevents your Sea to Summit Aeros Pillow from slipping.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eComes with a stuff sack which doubles as a pump, a repair kit with six self-adhesive patches and a spare valve insert.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eColour: Yellow\u003c\/li\u003e\n\u003cli\u003eDimensions: 183 x 55 cm\u003c\/li\u003e\n\u003cli\u003ePacked Size: 9 x 18 cm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaterials: 30D\/40D Nylon Face Fabric with anti-microbial liquid-extruded TPU lamination\u003c\/li\u003e\n\u003cli\u003eManufacturer: Sea to Summit\u003c\/li\u003e\n\u003cli\u003eR-Value: 1.1\u003c\/li\u003e\n\u003cli\u003eWeight: 395g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Default Title","offer_id":31458635208,"sku":"SS-SM-ULMR","price":95.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/Untitleddesign_6_493baa50-f150-4e45-a81c-73b9fb63233e.jpg?v=1753455895"},{"product_id":"sea-to-summit-comfort-deluxe-s-i-mat-camper-van","title":"Sea to Summit Comfort Deluxe S.I Mat (Camper Van)","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe Sea to Summit Comfort Deluxe Self Inflating Mat are sleeping mats that provide ultimate comfort over night, with the support of a foam core and the benefit of self-inflating technology.\u003c\/p\u003e\n\u003cp\u003eLuxuriously extravagant, and with season comfort, t\u003cmeta charset=\"utf-8\"\u003ehe \u003cspan data-mce-fragment=\"1\"\u003eSea to Summit\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e Comfort Deluxe Self Inflating Mat \u003c\/span\u003efulfils the expectations of the most demanding camper. U\u003cspan\u003esing 'Delta Core' technology ensures the optimal amount of foam to comfort ratio -while also reducing the packed volume without sacrificing support or durability. A multi-function valve allows the mat to be rolled and stowed tightly without fighting re-inflation as you go, while diagonal supporting foam 'walls' help with structure once that mat is inflated.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor the added insulation, Sea to Summit use Exkin® Platinum, a quiet non-woven fabric, to reflect radiant heat loss back to the user and Thermolite® insulation to prevent convective heat loss between your body and the ground. An R-Value of 5.2 and a depth of 4 inches, the Comfort Deluxe will keep you insulated and supported for a great nights sleep. Perfect for car camping, canoeing or extended trips where a slight weight penalty isn't an issue. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eVideo\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eBelow is a video from Sea to Summit detailing the features of the Comfort Deluxe S.I Mat range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/d7xPUSruLbM\" height=\"315\" width=\"560\" allowfullscreen=\"\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMulti-function valve for easy inflation, deflation and fine tuning of air pressure\u003c\/li\u003e\n\u003cli\u003e30D stretch-knit fabric on the sleeping surface offers the right balance between comfort and durability, while extrusion laminated TPU is used on the base\u003c\/li\u003e\n\u003cli\u003eSea to Summit's TPU lamination process - one used in the medical and aeronautical industries but unique to the outdoor industry - is vastly superior to the roll-to-roll lamination process that is commonly used in outdoor products at present. The TPU bonds better and more consistently, virtually eliminating delamination issues\u003c\/li\u003e\n\u003cli\u003eComes with a quality stuff sack and a repair kit containing six self adhesive patches for repairing punctures in the field\u003c\/li\u003e\n\u003cli\u003eSea to Summit’s Comfort Deluxe mats should be used right side up. A Sea to Summit logo and size graphic are printed on the side of the mat that should be up when in use\u003c\/li\u003e\n\u003cli\u003eExtended storage instructions: mat should be laid flat, folded as few times as possible with valves open\u003c\/li\u003e\n\u003cli\u003ePillowLock attaches your Aeros pillow to your mat, holding it in place for a slip-free sleep\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eLength\/Width: 201 x 115cm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-mce-fragment=\"1\"\u003eRolled Size: Ø30 x 60cm \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eThickness: 10cm\u003c\/li\u003e\n\u003cli\u003eR Value 5.2\u003c\/li\u003e\n\u003cli\u003eConstruction: Delta Core\u003c\/li\u003e\n\u003cli\u003eShape: Rectangle\u003c\/li\u003e\n\u003cli\u003eWeight: 3650g\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eRelated Collections\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFor more sleeping mats from Sea to Summit view our \u003ca href=\"https:\/\/rockrun.com\/collections\/sea-to-summit-sleeping-mats\" title=\"Sea to Summit Sleeping Mats Collection\"\u003eSea to Summit Sleeping Mats Collection\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eSee more products in our \u003ca href=\"https:\/\/rockrun.com\/collections\/sea-to-summit\" title=\"Sea to Summit Collection\"\u003eSea to Summit Collection \u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Camper Van","offer_id":42533819711669,"sku":"SS-SM-CDSICAMPER","price":240.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/ComfortDeluxeSI-CamperVan-ByronBlue-01_9327868139736-5454x8181-ec80df7.jpg?v=1750867530"},{"product_id":"sea-to-summit-silk-blend-liner-mummy","title":"Sea to Summit Silk Blend Liner (Mummy)","description":"\u003cp\u003eDesigned with a mummy shape and constructed of Thermolite-silk fabric, the Sea to Summit Silk Blend Liner is enhanced with comfort stretch panels for a supremely soft and opulent feel. The addition of Thermolite-yarn provides added warmth to accommodate varying temperatures year-round. \u003c\/p\u003e\n\u003cp\u003eThe Thermolite EcoMade has been designed with recycled Thermolite EcoMade fibres made from 100% textile waste, are GRS-certified, and offer the same quality and durable lightweight warmth as their polymer virgin counterparts but with a lower carbon footprint. Also features Thermolite Pro which has been designed with specially engineered hollow fibres, similar to traditional Thermolite materials. However, this version also includes permanent ceramic pigments that effectively absorb infrared rays from the body and then reflect them back to the user.\u003c\/p\u003e\n\u003cp\u003eTested in accordance with ASTM D1518-2014, This liner will add +8% thermal boost to a 1-season sleeping bag, and +5% to a 3-season sleeping bag.\u003c\/p\u003e\n\u003cp\u003eThe draw-cord footbox allows you to regulate your temperature more to your comfort. Keep it sinched up to keep in the warmth, if you get a little too hot, then open it up and let your feet breathe. You can also free your arms without taking the liner off, allowing you to carry out various tasks around camp whilst still keeping warm.\u003c\/p\u003e\n\u003cp\u003eEquipped with HeiQ Fresh FFL, a biocide-free, powerful body odour control technology utilizing a bio-based Amino Sugar Polymer to eliminate any unwanted scents.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSUSTAINABILITY: Fabric is made from a blend of 72% recycled and 28% natural yarns.\u003c\/li\u003e\n\u003cli\u003eYARN 1: 72% Thermolite\u003c\/li\u003e\n\u003cli\u003eYARN 2: 28% natural silk\u003c\/li\u003e\n\u003cli\u003eTHERMAL BOOST: +8% thermal boost to a 1-season sleeping bag, and +5% to a 3-season sleeping bag.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRegular Dimensions: 206 x 80 cm\u003c\/li\u003e\n\u003cli\u003eCompact Dimensions: 184 x 80 cm\u003c\/li\u003e\n\u003cli\u003eRegular Weight: 154g\u003c\/li\u003e\n\u003cli\u003eCompact Weight: 138g\u003c\/li\u003e\n\u003cli\u003eStuff sack included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Standard (Max User Height 198cm)","offer_id":43732996325557,"sku":"SS-SN-SSSBL-STANDARD","price":87.95,"currency_code":"GBP","in_stock":true},{"title":"Compact (Max User Height 177cm)","offer_id":43733144699061,"sku":"SS-SN-SSSBL-COMFORT","price":79.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SilkBlendSleepingBagLiner-Mummy-Standard_ASL032051-191802_PRIMARY.jpg?v=1750866020"},{"product_id":"sea-to-summit-silk-blend-liner-w-pillow-case-rectangle","title":"Sea to Summit Silk Blend Liner - w\/ Pillow Case (Rectangle)","description":"\u003cp\u003eSize: Max Use Height: 198cm\u003c\/p\u003e\n\u003cp\u003eCrafted with a rectangular design and a pillow case cover, the Sea to Summit Silk Blend Liner is made of Thermolite-silk material and features comfort stretch panels for a luxuriously plush and extravagant sensation. The inclusion of Thermolite-yarn adds additional warmth to suit fluctuating temperatures throughout the year.\u003c\/p\u003e\n\u003cp\u003eThe Thermolite EcoMade has been designed with recycled Thermolite EcoMade fibres made from 100% textile waste, are GRS-certified, and offer the same quality and durable lightweight warmth as their polymer virgin counterparts but with a lower carbon footprint. Also features Thermolite Pro which has been designed with specially engineered hollow fibres, similar to traditional Thermolite materials. However, this version also includes permanent ceramic pigments that effectively absorb infrared rays from the body and then reflect them back to the user.\u003c\/p\u003e\n\u003cp\u003eTested in accordance with ASTM D1518-2014, This liner will add +8% thermal boost to a 1-season sleeping bag, and +5% to a 3-season sleeping bag.\u003c\/p\u003e\n\u003cp\u003eEquipped with HeiQ Fresh FFL, a biocide-free, powerful body odour control technology utilizing a bio-based Amino Sugar Polymer to eliminate any unwanted scents.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSUSTAINABILITY: Fabric is made from a blend of 72% recycled and 28% natural yarns.\u003c\/li\u003e\n\u003cli\u003eYARN 1: 72% Thermolite\u003c\/li\u003e\n\u003cli\u003eYARN 2: 28% natural silk\u003c\/li\u003e\n\u003cli\u003eTHERMAL BOOST: +8% thermal boost to a 1-season sleeping bag, and +5% to a 3-season sleeping bag.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRegular Dimensions: 225 x 80 cm\u003c\/li\u003e\n\u003cli\u003eRegular Weight: 177g\u003c\/li\u003e\n\u003cli\u003eStuff sack included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Default Title","offer_id":43733060485301,"sku":"SS-SN-SSSBLPLW-STANDARD","price":87.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SilkBlendSleepingBagLiner-RectangularWithPillowSleeve_ASL032051-251803_PRIMARY.jpg?v=1750866018"},{"product_id":"sea-to-summit-comfort-blend-liner-rectangle","title":"Sea to Summit Comfort Blend Liner (Rectangle)","description":"\u003cp\u003eSize: Max User Height: 185cm\u003c\/p\u003e\n\u003cp\u003eThe Sea to Summit Comfort Blend Liner (Rectangle) is a travel liner that provides versatility and reassurance in various climates and environments. It boasts high-quality materials, such as Tencel-poly blend fabric and Tencel Fibers, which effectively remove moisture. This allows you to experience the great outdoors with the luxuries of home.\u003c\/p\u003e\n\u003cp\u003eThis product is made from 70% COOLMAX® fibre and 30% TENCEL™. Lyocell fibre for exceptional temperature regulation and luxurious next-to-skin comfort. Equipped with HeiQ Fresh FFL, a biocide-free, powerful body odour control technology utilizing a bio-based Amino Sugar Polymer to eliminate any unwanted scents.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSUSTAINABILITY: Fabric is made from 30% sustainably-grown yarn.\u003c\/li\u003e\n\u003cli\u003eYARN 1: 70% polyester.\u003c\/li\u003e\n\u003cli\u003eYARN 2: 30% Tencel lyocell fibres.\u003c\/li\u003e\n\u003cli\u003eHeiQ Fresh odour control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRegular Dimensions: 185 x 80 cm\u003c\/li\u003e\n\u003cli\u003eWeight: 354g\u003c\/li\u003e\n\u003cli\u003eStuff sack included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Default Title","offer_id":43733154037941,"sku":"SS-SN-SSCBL-RECTANGLE","price":27.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/ComfortBlendSleepingBagLiner-Rectangular_ASL032071-200202_PRIMARY.jpg?v=1750866015"},{"product_id":"sea-to-summit-comfort-blend-liner-w-pillow-case-rectangle","title":"Sea to Summit Comfort Blend Liner - w\/ Pillow Case (Rectangle)","description":"\u003cp\u003eSize: Max User Height: 185cm\u003c\/p\u003e\n\u003cp\u003eThe Sea to Summit Comfort Blend Liner (Rectangle) with a pillow sleeve is a travel liner that provides versatility and reassurance in various climates and environments. It boasts high-quality materials, such as Tencel-poly blend fabric and Tencel Fibers, which effectively remove moisture. This allows you to experience the great outdoors with the luxuries of home.\u003c\/p\u003e\n\u003cp\u003eThis product is made from 70% COOLMAX® fibre and 30% TENCEL™. Lyocell fibre for exceptional temperature regulation and luxurious next-to-skin comfort. Equipped with HeiQ Fresh FFL, a biocide-free, powerful body odour control technology utilizing a bio-based Amino Sugar Polymer to eliminate any unwanted scents.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSUSTAINABILITY: Fabric is made from 30% sustainably-grown yarn.\u003c\/li\u003e\n\u003cli\u003eYARN 1: 70% polyester.\u003c\/li\u003e\n\u003cli\u003eYARN 2: 30% Tencel lyocell fibres.\u003c\/li\u003e\n\u003cli\u003eHeiQ Fresh odour control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRegular Dimensions: 225 x 80 cm\u003c\/li\u003e\n\u003cli\u003eWeight: 430g\u003c\/li\u003e\n\u003cli\u003eStuff sack included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Default Title","offer_id":43733166489781,"sku":"SS-SN-SSCBLWPLW-RECTANGLE","price":31.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/ComfortBlendSleepingBagLiner-RectangularWithPillowSleeve_ASL032071-250201_PRIMARY.jpg?v=1750866013"},{"product_id":"sea-to-summit-trek-down-sleeping-bag-1-c","title":"Sea to Summit Trek Down Sleeping Bag -1°C","description":"\u003cp\u003eThe Sea to Summit Trek -1°C down sleeping bag is a 2.5-season bag that offers both the snugness of a tapered rectangular mummy shape and the flexibility of a dual-zip ventilation system, making it perfect for any journey. The innovative Free Flow Zip System includes a full-length side zip and an additional foot box zip, allowing for customizable ventilation options and the ability to lay the Trek flat like a duvet. The sleeping bag allows you to keep your arms free while staying warm, making it convenient for activities such as cooking during the day.\u003c\/p\u003e\n\u003cp\u003eIts high-quality down filling ensures warmth and comfort on colder nights. Filled with 650+ Fill Power, RDS-certified, Duck Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003c\/p\u003e\n\u003cp\u003eThe Trek's cocoon-like shape provides ample space for movement while sleeping, no matter your position. This ultralight and compact down sleeping bag is perfect for trekking, backpacking, travelling, or camping adventures. You can also form a snug double sleeping bag by zipping it onto any women's Sea to Summit sleeping bag.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"Article: A guide to down sleeping bags...down explained\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDuck Down with UltraDry Down treatment for improved water resistance in damp conditions.\u003c\/li\u003e\n\u003cli\u003eInsulation: 650+ FILL Power, RDScertified, Duck Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003c\/li\u003e\n\u003cli\u003eRecycled polyester offers durability and comfort for lightweight adventures in a range of climates and conditions.\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell.\u003c\/li\u003e\n\u003cli\u003eThe Free Flow Zip System offers temperature regulation and multiple sleeping bag configurations for added freedom in the outdoors.\u003c\/li\u003e\n\u003cli\u003eThe Semi Rectangular Fit features a spacious design for added comfort and room that is best suited to car camping and shorter adventures.\u003c\/li\u003e\n\u003cli\u003eHood: Generous fitted hood with two soft touch adjustments. Fits a Sea to Summit regular pillow.\u003c\/li\u003e\n\u003cli\u003eDraft Tube: Single, synthetic-filled, draft tube along the top of all\u003cbr data-mce-fragment=\"1\"\u003ezippers.\u003c\/li\u003e\n\u003cli\u003eInternal pocket for phone \/ GPS \/ valuables.\u003c\/li\u003e\n\u003cli\u003eFull-length YKK® #5 main side zip and foot box zip provide superior ventilation and allow the bag to be used as a comforter.\u003c\/li\u003e\n\u003cli\u003eCan be paired up Pairs with women's Sea to Summit bags.\u003c\/li\u003e\n\u003cli\u003ePillow integration: Sea to Summit Regular Pillow fits inside hood.\u003c\/li\u003e\n\u003cli\u003eColar: Trek -1C\/30F \u0026amp; -9C\/15F Fitted front draft collar: scalloped over the neck and oversized at the shoulders. Trek -18C\/0F Double draft collars: fitted front collar and tubular back collar.\u003c\/li\u003e\n\u003cli\u003eBaffle Construction: Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003eSpecification \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198 cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: 3°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -2°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 158 cm \/ Long: 168 cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 149 cm \/ Long: 159 cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 119 cm \/ Long: 129 cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: Recycled 20-Denier Polyester shell and lining.\u003c\/li\u003e\n\u003cli\u003eFilling:  Duck Down\u003c\/li\u003e\n\u003cli\u003eFill power: 650+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1119g \/ Long: 1253g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 380g \/ Long: 437g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 13L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43784391852213,"sku":"SS-DB-STSTRK-1C-REG","price":260.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":43784391884981,"sku":"SS-DB-STSTRK-1C-LNG","price":288.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/TrekDownSleepingBag-1C-30FRegular_ASL041172-050201_USP_2.jpg?v=1750865711"},{"product_id":"sea-to-summit-trek-down-sleeping-bag-9-c","title":"Sea to Summit Trek Down Sleeping Bag -9°C","description":"\u003cp\u003eThe Sea to Summit Trek -9°C down sleeping bag is a 3.5-season bag that offers both the snugness of a tapered rectangular mummy shape and the flexibility of a dual-zip ventilation system, making it perfect for any journey. The innovative Free Flow Zip System includes a full-length side zip and an additional foot box zip, allowing for customizable ventilation options and the ability to lay the Trek flat like a duvet. The sleeping bag allows you to keep your arms free while staying warm, making it convenient for activities such as cooking during the day.\u003c\/p\u003e\n\u003cp\u003eIts high-quality down filling ensures warmth and comfort on colder nights. Filled with 650+ Fill Power, RDS-certified, Duck Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003c\/p\u003e\n\u003cp\u003eThe Trek's cocoon-like shape provides ample space for movement while sleeping, no matter your position. This ultralight and compact down sleeping bag is perfect for trekking, backpacking, travelling, or camping adventures. You can also form a snug double sleeping bag by zipping it onto any women's Sea to Summit sleeping bag.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDuck Down with UltraDry Down treatment for improved water resistance in damp conditions.\u003c\/li\u003e\n\u003cli\u003eInsulation: 650+ FILL Power, RDScertified, Duck Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003c\/li\u003e\n\u003cli\u003eRecycled polyester offers durability and comfort for lightweight adventures in a range of climates and conditions.\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell.\u003c\/li\u003e\n\u003cli\u003eThe Free Flow Zip System offers temperature regulation and multiple sleeping bag configurations for added freedom in the outdoors.\u003c\/li\u003e\n\u003cli\u003eThe Semi Rectangular Fit features a spacious design for added comfort and room that is best suited to car camping and shorter adventures.\u003c\/li\u003e\n\u003cli\u003eHood: Generous fitted hood with two soft touch adjustments. Fits a Sea to Summit regular pillow.\u003c\/li\u003e\n\u003cli\u003eDraft Tube: Single, synthetic-filled, draft tube along the top of all\u003cbr data-mce-fragment=\"1\"\u003ezippers.\u003c\/li\u003e\n\u003cli\u003eInternal pocket for phone \/ GPS \/ valuables.\u003c\/li\u003e\n\u003cli\u003eFull-length YKK® #5 main side zip and foot box zip provide superior ventilation and allow the bag to be used as a comforter.\u003c\/li\u003e\n\u003cli\u003eCan be paired up Pairs with women's Sea to Summit bags.\u003c\/li\u003e\n\u003cli\u003ePillow integration: Sea to Summit Regular Pillow fits inside hood.\u003c\/li\u003e\n\u003cli\u003eColar: Trek -1C\/30F \u0026amp; -9C\/15F Fitted front draft collar: scalloped over the neck and oversized at the shoulders. Trek -18C\/0F Double draft collars: fitted front collar and tubular back collar.\u003c\/li\u003e\n\u003cli\u003eBaffle Construction: Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003eSpecification \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198 cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -3°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -9°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 158 cm \/ Long: 168 cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 149 cm \/ Long: 159 cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 119 cm \/ Long: 129 cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: Recycled 20-Denier Polyester shell and lining.\u003c\/li\u003e\n\u003cli\u003eFilling:  Duck Down\u003c\/li\u003e\n\u003cli\u003eFill power: 650+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1436g \/ Long: 1611g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 635g \/ Long: 735g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 20L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43784403779765,"sku":"SS-DB-STSTRK-9C-REG","price":296.0,"currency_code":"GBP","in_stock":false},{"title":"Long","offer_id":43784403812533,"sku":"SS-DB-STSTRK-9C-LNG","price":320.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/TrekDownSleepingBag-1C-30FRegular_ASL041172-050201_USP_2_867f5764-e08f-49ec-ba76-88845697282f.jpg?v=1750865706"},{"product_id":"sea-to-summit-trek-down-sleeping-bag-18-c","title":"Sea to Summit Trek Down Sleeping Bag -18°C","description":"\u003cp\u003eThe Sea to Summit Trek -18°C down sleeping bag is a 4-season bag that offers both the snugness of a tapered rectangular mummy shape and the flexibility of a dual-zip ventilation system, making it perfect for any journey. The innovative Free Flow Zip System includes a full-length side zip and an additional foot box zip, allowing for customizable ventilation options and the ability to lay the Trek flat like a duvet. The sleeping bag allows you to keep your arms free while staying warm, making it convenient for activities such as cooking during the day.\u003c\/p\u003e\n\u003cp\u003eIts high-quality down filling ensures warmth and comfort on colder nights. Filled with 650+ Fill Power, RDS-certified, Duck Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003c\/p\u003e\n\u003cp\u003eThe Trek's cocoon-like shape provides ample space for movement while sleeping, no matter your position. This ultralight and compact down sleeping bag is perfect for trekking, backpacking, travelling, or camping adventures. You can also form a snug double sleeping bag by zipping it onto any women's Sea to Summit sleeping bag.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDuck Down with UltraDry Down treatment for improved water resistance in damp conditions.\u003c\/li\u003e\n\u003cli\u003eInsulation: 650+ FILL Power, RDScertified, Duck Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003c\/li\u003e\n\u003cli\u003eRecycled polyester offers durability and comfort for lightweight adventures in a range of climates and conditions.\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell.\u003c\/li\u003e\n\u003cli\u003eThe Free Flow Zip System offers temperature regulation and multiple sleeping bag configurations for added freedom in the outdoors.\u003c\/li\u003e\n\u003cli\u003eThe Semi Rectangular Fit features a spacious design for added comfort and room that is best suited to car camping and shorter adventures.\u003c\/li\u003e\n\u003cli\u003eHood: Generous fitted hood with two soft touch adjustments. Fits a Sea to Summit regular pillow.\u003c\/li\u003e\n\u003cli\u003eDraft Tube: Single, synthetic-filled, draft tube along the top of all\u003cbr data-mce-fragment=\"1\"\u003ezippers.\u003c\/li\u003e\n\u003cli\u003eInternal pocket for phone \/ GPS \/ valuables.\u003c\/li\u003e\n\u003cli\u003eFull-length YKK® #5 main side zip and foot box zip provide superior ventilation and allow the bag to be used as a comforter.\u003c\/li\u003e\n\u003cli\u003eCan be paired up Pairs with women's Sea to Summit bags.\u003c\/li\u003e\n\u003cli\u003ePillow integration: Sea to Summit Regular Pillow fits inside hood.\u003c\/li\u003e\n\u003cli\u003eColar: Trek -1C\/30F \u0026amp; -9C\/15F Fitted front draft collar: scalloped over the neck and oversized at the shoulders. Trek -18C\/0F Double draft collars: fitted front collar and tubular back collar.\u003c\/li\u003e\n\u003cli\u003eBaffle Construction: Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198 cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -11°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -18°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 158 cm \/ Long: 168 cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 149 cm \/ Long: 159 cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 119 cm \/ Long: 129 cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: Recycled 20-Denier Polyester shell and lining.\u003c\/li\u003e\n\u003cli\u003eFilling:  Duck Down\u003c\/li\u003e\n\u003cli\u003eFill power: 650+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1895g \/ Long: 2098g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 1000g \/ Long: 1163g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 26L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43784414462133,"sku":"SS-DB-STSTRK-18C-REG","price":344.0,"currency_code":"GBP","in_stock":false},{"title":"Long","offer_id":43784414494901,"sku":"SS-DB-STSTRK-18C-LNG","price":376.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/TrekDownSleepingBag-1C-30FRegular_ASL041172-050201_USP_2_e453a94a-febf-4746-bdcc-40cf8f1556ce.jpg?v=1750865701"},{"product_id":"sea-to-summit-trek-womens-down-sleeping-bag-1-c","title":"Sea to Summit Trek Womens Down Sleeping Bag -1°C","description":"\u003cp\u003eThe Sea to Summit Trek Women's -1°C down sleeping bag is a 2.5-season bag that offers both the snugness of a tapered rectangular mummy shape and the flexibility of a dual-zip ventilation system, making it perfect for any journey. The innovative Free Flow Zip System includes a full-length side zip and an additional foot box zip, allowing for customizable ventilation options and the ability to lay the Trek flat like a duvet. The sleeping bag allows you to keep your arms free while staying warm, making it convenient for activities such as cooking during the day.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesigned For Women\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis women's sleeping bag is specifically designed for comfort, featuring a shape that is narrower at the shoulders and wider between the hips and knees. No matter your preferred sleeping position (figure-four, on your side, or on your stomach), this design allows for optimal movement without compressing the insulation, resulting in a noticeably elevated level of comfort.\u003c\/p\u003e\n\u003cp\u003eAdditional insulation compared to unisex bags, positioned using different body mapping for thermal performance exactly where it is needed. The comfort and versatility-oriented Journey and Altitude sleeping bags have an additional Thermolite layer in the footbox to warm your feet fast. Temperatures for Women’s sleeping bags are shown using the gender appropriate Comfort rating.\u003c\/p\u003e\n\u003cp\u003eIts high-quality down filling ensures warmth and comfort on colder nights. Filled with 650+ Fill Power, RDS-certified, Duck Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003c\/p\u003e\n\u003cp\u003eThe Trek's cocoon-like shape provides ample space for movement while sleeping, no matter your position. This ultralight and compact down sleeping bag is perfect for trekking, backpacking, travelling, or camping adventures. You can also form a snug double sleeping bag by zipping it onto any women's Sea to Summit sleeping bag.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eYou don’t have to narrow your options with a constrictive mummy bag – expand your horizons with a sleeping bag which fits the way you sleep.\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDuck Down with UltraDry Down treatment for improved water resistance in damp conditions.\u003c\/li\u003e\n\u003cli\u003eInsulation: 650+ FILL Power, RDScertified, Duck Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003c\/li\u003e\n\u003cli\u003eRecycled polyester offers durability and comfort for lightweight adventures in a range of climates and conditions.\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell.\u003c\/li\u003e\n\u003cli\u003eThe Free Flow Zip System offers temperature regulation and multiple sleeping bag configurations for added freedom in the outdoors.\u003c\/li\u003e\n\u003cli\u003eThe Semi Rectangular Fit features a spacious design for added comfort and room that is best suited to car camping and shorter adventures.\u003c\/li\u003e\n\u003cli\u003eHood: Generous fitted hood with two soft touch adjustments. Fits a Sea to Summit regular pillow.\u003c\/li\u003e\n\u003cli\u003eDraft Tube: Single, synthetic-filled, draft tube along the top of all\u003cbr data-mce-fragment=\"1\"\u003ezippers.\u003c\/li\u003e\n\u003cli\u003eInternal pocket for phone \/ GPS \/ valuables.\u003c\/li\u003e\n\u003cli\u003eFull-length YKK® #5 main side zip and foot box zip provide superior ventilation and allow the bag to be used as a comforter.\u003c\/li\u003e\n\u003cli\u003eCan be paired up Pairs with women's Sea to Summit bags.\u003c\/li\u003e\n\u003cli\u003ePillow integration: Sea to Summit Regular Pillow fits inside hood.\u003c\/li\u003e\n\u003cli\u003eColar: Trek Women's -1C\/30F Fitted front draft collar: scalloped over the neck and oversized at the shoulders. Trek Women's -9C\/15F Double draft collars: fitted front collar and tubular back collar.\u003c\/li\u003e\n\u003cli\u003eBaffle Construction: Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 170cm \/  - Long: 185 cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: 3°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -2°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 145 cm \/ Long: 155 cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 145 cm \/ Long: 155 cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 120 cm \/ Long: 131 cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: Recycled 20-Denier Polyester shell and lining.\u003c\/li\u003e\n\u003cli\u003eFilling:  Duck Down\u003c\/li\u003e\n\u003cli\u003eFill power: 650+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1239g \/ Long: 1418g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 520g \/ Long: 610g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 18L\u003c\/li\u003e\n\u003cli\u003eZip: Right\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43784423932085,"sku":"SS-DB-STSTRKW-1C-REG","price":256.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/TrekDownSleepingBagWomens-1C-30FRegular_ASL041171-330201_USP_1.jpg?v=1750865697"},{"product_id":"sea-to-summit-trek-womens-down-sleeping-bag-9-c","title":"Sea to Summit Trek Womens Down Sleeping Bag -9°C","description":"\u003cp\u003eThe Sea to Summit Trek Women's -9°C down sleeping bag is a 3.5-season bag that offers both the snugness of a tapered rectangular mummy shape and the flexibility of a dual-zip ventilation system, making it perfect for any journey. The innovative Free Flow Zip System includes a full-length side zip and an additional foot box zip, allowing for customizable ventilation options and the ability to lay the Trek flat like a duvet. The sleeping bag allows you to keep your arms free while staying warm, making it convenient for activities such as cooking during the day.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesigned For Women\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis women's sleeping bag is specifically designed for comfort, featuring a shape that is narrower at the shoulders and wider between the hips and knees. No matter your preferred sleeping position (figure-four, on your side, or on your stomach), this design allows for optimal movement without compressing the insulation, resulting in a noticeably elevated level of comfort.\u003c\/p\u003e\n\u003cp\u003eAdditional insulation compared to unisex bags, positioned using different body mapping for thermal performance exactly where it is needed. The comfort and versatility-oriented Journey and Altitude sleeping bags have an additional Thermolite layer in the footbox to warm your feet fast. Temperatures for Women’s sleeping bags are shown using the gender appropriate Comfort rating.\u003c\/p\u003e\n\u003cp\u003eIts high-quality down filling ensures warmth and comfort on colder nights. Filled with 650+ Fill Power, RDS-certified, Duck Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003c\/p\u003e\n\u003cp\u003eThe Trek's cocoon-like shape provides ample space for movement while sleeping, no matter your position. This ultralight and compact down sleeping bag is perfect for trekking, backpacking, travelling, or camping adventures. You can also form a snug double sleeping bag by zipping it onto any women's Sea to Summit sleeping bag.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eYou don’t have to narrow your options with a constrictive mummy bag – expand your horizons with a sleeping bag which fits the way you sleep.\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"Article: A guide to down sleeping bags...down explained\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDuck Down with UltraDry Down treatment for improved water resistance in damp conditions.\u003c\/li\u003e\n\u003cli\u003eInsulation: 650+ FILL Power, RDScertified, Duck Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003c\/li\u003e\n\u003cli\u003eRecycled polyester offers durability and comfort for lightweight adventures in a range of climates and conditions.\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell.\u003c\/li\u003e\n\u003cli\u003eThe Free Flow Zip System offers temperature regulation and multiple sleeping bag configurations for added freedom in the outdoors.\u003c\/li\u003e\n\u003cli\u003eThe Semi Rectangular Fit features a spacious design for added comfort and room that is best suited to car camping and shorter adventures.\u003c\/li\u003e\n\u003cli\u003eHood: Generous fitted hood with two soft touch adjustments. Fits a Sea to Summit regular pillow.\u003c\/li\u003e\n\u003cli\u003eDraft Tube: Single, synthetic-filled, draft tube along the top of all\u003cbr data-mce-fragment=\"1\"\u003ezippers.\u003c\/li\u003e\n\u003cli\u003eInternal pocket for phone \/ GPS \/ valuables.\u003c\/li\u003e\n\u003cli\u003eFull-length YKK® #5 main side zip and foot box zip provide superior ventilation and allow the bag to be used as a comforter.\u003c\/li\u003e\n\u003cli\u003eCan be paired up Pairs with women's Sea to Summit bags.\u003c\/li\u003e\n\u003cli\u003ePillow integration: Sea to Summit Regular Pillow fits inside hood.\u003c\/li\u003e\n\u003cli\u003eColar: Trek Women's -1C\/30F Fitted front draft collar: scalloped over the neck and oversized at the shoulders. Trek Women's -9C\/15F Double draft collars: fitted front collar and tubular back collar.\u003c\/li\u003e\n\u003cli\u003eBaffle Construction: Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 170cm \/  - Long: 185 cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -8°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -16°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 145 cm \/ Long: 155 cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 145 cm \/ Long: 155 cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 120 cm \/ Long: 131 cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: Recycled 20-Denier Polyester shell and lining.\u003c\/li\u003e\n\u003cli\u003eFilling:  Duck Down\u003c\/li\u003e\n\u003cli\u003eFill power: 650+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1612g \/ Long: 1800g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 800g \/ Long: 925g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 26L\u003c\/li\u003e\n\u003cli\u003eZip: Right\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43784451883189,"sku":"SS-DB-STSTRKW-9C-REG","price":300.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/TrekDownSleepingBagWomens-1C-30FRegular_ASL041171-330201_USP_1_80e3abe2-9ff0-4388-a4a9-f5e1722d4968.jpg?v=1750865694"},{"product_id":"sea-to-summit-ascent-down-sleeping-bag-9-c","title":"Sea to Summit Ascent Down Sleeping Bag -9°C","description":"\u003cp\u003eThe Sea to Summit Ascent -9°C down mummy sleeping bag is a 3.5-season bag that offers unparalleled versatility, thanks to its advanced design and premium down insulation, making it ideal for various climates and outdoor activities. Whether you're embarking on a lengthy hike or a quick weekend trip, the ultra-lightweight 750+ RDS Certified duck down provides exceptional warmth in cold conditions, while the innovative triple-zip Free-Flow Zip system allows for excellent ventilation in warmer weather. Shaped to allow a natural sleeping position for comfort, while light and compact enough to go anywhere. You can also form a snug double sleeping bag by zipping to any women's sleeping bag from Sea to Summit.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eULTRA-DRY Down 750+ Loft 90% Down Cluster Premium duck.\u003c\/li\u003e\n\u003cli\u003eDown certified Responsible Down Standard (RDS).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFree-flow zip system: full-length YKK® #5 main side zip, half-length opposite side zip, and foot zip provides unparalleled ventilation and use as a comforter.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical baffles over the chest to prevent down shifting as you roll over in your sleep.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShaped hood, oversized draft collar, and zip draft tube keep the cold out and the warmth in.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInternal pocket for phone \/ GPS \/ valuables.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eForm a snug double sleeping bag by zipping to any women's sleeping bag from Sea to Summit.\u003c\/li\u003e\n\u003cli\u003eComes with an Ultra-Sil compression bag and storage cell.\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long:  198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -2°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -9°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 158cm \/ Long: 168cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 146cm \/ Long: 156cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 119cm \/ Long: 129cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: Recycled 20-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry duck down\u003c\/li\u003e\n\u003cli\u003eFill power: 750+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1020g \/ Long: 1157g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 540g \/ Long: 617g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 8L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43784457912501,"sku":"SS-DB-STSASC-9C-REG","price":360.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":43784457945269,"sku":"SS-DB-STSASC-9C-LNG","price":400.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/AscentDownSleepingBag-1C-30FRegular_ASL041101-052001_USP_3.jpg?v=1750865669"},{"product_id":"sea-to-summit-ascent-womens-down-sleeping-bag-9-c","title":"Sea to Summit Ascent Womens Down Sleeping Bag -9°C","description":"\u003cp\u003eThe Sea to Summit Ascent Womens -9°C down mummy sleeping bag is a 3.5-season bag that offers unparalleled versatility, thanks to its advanced design and premium down insulation, making it ideal for various climates and outdoor activities. Whether you're embarking on a lengthy hike or a quick weekend trip, the ultra-lightweight 750+ RDS Certified duck down provides exceptional warmth in cold conditions, while the innovative triple-zip Free-Flow Zip system allows for excellent ventilation in warmer weather. Shaped with a relaxed Mummy Fit specifically for women: A more relaxed yet tapered mummy fit with high thermal performance. Wider at the hips and narrower at the shoulders for a better fit and heat retention for women. You can also form a snug double sleeping bag by zipping to any men's sleeping bag from Sea to Summit.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eULTRA-DRY Down 750+ Loft 90% Down Cluster Premium Duck.\u003c\/li\u003e\n\u003cli\u003eDown certified Responsible Down Standard (RDS).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFree-flow zip system: full-length YKK® #5 main side zip, half-length opposite side zip, and foot zip provides unparalleled ventilation and use as a comforter.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical baffles over the chest to prevent down shifting as you roll over in your sleep.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShaped hood, oversized draft collar, and zip draft tube keep the cold out and the warmth in.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInternal pocket for phone \/ GPS \/ valuables.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eForm a snug double sleeping bag by zipping to any men's sleeping bag from Sea to Summit.\u003c\/li\u003e\n\u003cli\u003eComes with an Ultra-Sil compression bag and storage cell.\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 170cm \/  - Long:  185cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -9°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -15°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 145cm \/ Long: 155cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 140cm \/ Long: 150cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 109cm \/ Long: 119cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: Recycled 20-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry Duck down\u003c\/li\u003e\n\u003cli\u003eFill power: 750+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1251g \/ Long: 1403g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 797g \/ Long: 900g\u003c\/li\u003e\n\u003cli\u003eCompression Regular: Size: 20L \/ Long: 26L\u003c\/li\u003e\n\u003cli\u003eZip: Right\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43805717954741,"sku":"SS-DB-STSASCW-9C-REG","price":388.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/AscentDownSleepingBagWomens-1C-30FRegular_ASL041101-330401_USP_3.jpg?v=1750865654"},{"product_id":"sea-to-summit-alpine-down-sleeping-bag-29-c","title":"Sea to Summit Alpine Down Sleeping Bag -29°C","description":"\u003cp\u003eThis 4-season Sea to Summit Alpine -29°C down mummy sleeping bag boasts top-grade Ultra-Dry goose down and a perfectly shaped mummy design for optimal insulation. Designed for extreme cold weather conditions, it offers 850+ FILL Power and ample space for extra winter gear, providing confidence and peace of mind for your outdoor adventures. You can also form a snug double sleeping bag by zipping to any women's sleeping bag from Sea to Summit or you can combine this with a quilt for added warmth. A STS REegular Pillow will also fit neatly inside the hood.\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Goose Down certified.\u003c\/li\u003e\n\u003cli\u003eResponsible Down Standard (RDS).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFree-flow zipper system: one full-length YKK® #5 main zip and a half-length zip on the opposite side for ventilation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eExpedition fit sizing gives you room to wear extra clothing and accommodate gear inside the bag that you don't want to freeze!\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnatomically-shaped, oversized foot box can accommodate boot liners.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eGenerous fitted hood with two soft touch adjustments. Fits a Sea to Summit regular pillow.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDouble draft collars: fitted front collar and tubular back\u003cbr data-mce-fragment=\"1\"\u003ecollar.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInternal pocket for phone \/ GPS \/ valuables.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -19°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -29°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 160cm \/ Long: 170cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 149cm \/ Long: 159cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 122cm \/ Long: 132cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: Recycled 20-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 850+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1459g \/ Long: 1645g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 1000g \/ Long: 1135g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 26L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43860842381493,"sku":"SS-DB-STSALP-29C-REG","price":720.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":43860842414261,"sku":"SS-DB-STSALP-29C-LNG","price":760.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/AlpineDownSleepingBag-29C--20FRegular_ASL041043-050902_USP_3.jpg?v=1750865614"},{"product_id":"sea-to-summit-spark-down-sleeping-bag-7-c","title":"Sea to Summit Spark Down Sleeping Bag 7°C","description":"\u003cp\u003ePushing boundaries and taking risks, the Sea to Summit Spark Down Sleeping Bag 7°C is the ultimate ultralight and compressible sleeping bag on the market. Precision engineering and premium materials combine for unparalleled warmth, so you can conquer the elements with ease. Best used for ultralight backpacking.\u003c\/p\u003e\n\u003cp\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e850+ FILL Power, RDS-certified, Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C\/45F \u0026amp; 1C\/30F Primary zip - 1\/2 length #5 with zip-plow and two sliders. Spark -9C\/15F \u0026amp; -18C\/0F Primary zip - 3\/4 length #5 with zip-plow and two sliders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical chest baffles, horizontal baffles lower half and base. SPARK 7C sewn through quilted construction throughout. SPARK -1C\/30Fbox wall baffles top half of bag and sewn through quilted construction lower half. SPARK -9C \u0026amp; -18C box wall baffle construction throughout.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C, -1C \u0026amp; -9C Standard front draft collar. SPARK -18C Double draft collars.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7 \u0026amp; -1 can't be paired. Spark -9 \u0026amp; -18: Pairs with Women's Sea to Summit bags.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cstrong\u003eSpecification  \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: 11°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  7°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 155cm \/ Long: 165cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 135cm \/ Long: 145cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 102cm \/ Long: 112cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox. Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 850+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 363g \/ Long: 387g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 150g \/ Long: 172g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 2L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43861202731189,"sku":"SS-DB-STSSPRK-7C-REG","price":240.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":43861202763957,"sku":"SS-DB-STSSPRK-7C-LNG","price":264.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkDownSleepingBag7C-45FRegular_ASL041072-050101_USP_2.jpg?v=1750865611"},{"product_id":"sea-to-summit-spark-down-sleeping-bag-1-c","title":"Sea to Summit Spark Down Sleeping Bag -1°C","description":"\u003cp\u003eDefying limits and embracing danger, the Sea to Summit Spark Down Sleeping Bag -1°C is the ultimate ultralight 2.5-season compressible sleeping bag on the market. Harnessing precision engineering and premium materials, it delivers unparalleled warmth, empowering you to conquer the elements. Perfect for those seeking a wild and weightless adventure.\u003c\/p\u003e\n\u003cp\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"Article: A guide to down sleeping bags...down explained\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e850+ FILL Power, RDS-certified, Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C\/45F \u0026amp; 1C\/30F Primary zip - 1\/2 length #5 with zip-plow and two sliders. Spark -9C\/15F \u0026amp; -18C\/0F Primary zip - 3\/4 length #5 with zip-plow and two sliders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical chest baffles, horizontal baffles lower half and base. SPARK 7C sewn through quilted construction throughout. SPARK -1C\/30Fbox wall baffles top half of bag and sewn through quilted construction lower half. SPARK -9C \u0026amp; -18C box wall baffle construction throughout.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C, -1C \u0026amp; -9C Standard front draft collar. SPARK -18C Double draft collars.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7 \u0026amp; -1 can't be paired. Spark -9 \u0026amp; -18: Pairs with Women's Sea to Summit bags.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cstrong\u003eSpecification  \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: 4°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -1°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 155cm \/ Long: 165cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 135cm \/ Long: 145cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 102cm \/ Long: 112cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox. Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 850+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 493g \/ Long: 536g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 265g \/ Long: 305g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 8L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43861513863349,"sku":"SS-DB-STSSPRK-1C-REG","price":320.0,"currency_code":"GBP","in_stock":false},{"title":"Long","offer_id":43861513896117,"sku":"SS-DB-STSSPRK-1C-LNG","price":348.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkDownSleepingBag7C-45FRegular_ASL041072-050101_USP_2_5f968017-4255-4115-b4fb-756af6b50e8e.jpg?v=1750865608"},{"product_id":"sea-to-summit-spark-down-sleeping-bag-9-c","title":"Sea to Summit Spark Down Sleeping Bag -9°C","description":"\u003cp\u003eEmbrace risk and push boundaries with the unbeatable Sea to Summit Spark Down Sleeping Bag -9°C. Through precise engineering and top-quality materials, this compressible sleeping bag offers unmatched warmth, giving you the confidence to conquer the elements. Ideal for the daring adventurer seeking a featherlight experience, the Spark is also compatible with the female version for a double bag setup or with a Sea to Summit quilt for extra insulation during frigid solo nights!\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca rel=\"noopener\" title=\"sea to summit sleeping bag liners\" href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e850+ FILL Power, RDS-certified, Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C\/45F \u0026amp; 1C\/30F Primary zip - 1\/2 length #5 with zip-plow and two sliders. Spark -9C\/15F \u0026amp; -18C\/0F Primary zip - 3\/4 length #5 with zip-plow and two sliders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical chest baffles, horizontal baffles lower half and base. SPARK 7C sewn through quilted construction throughout. SPARK -1C\/30Fbox wall baffles top half of bag and sewn through quilted construction lower half. SPARK -9C \u0026amp; -18C box wall baffle construction throughout.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C, -1C \u0026amp; -9C Standard front draft collar. SPARK -18C Double draft collars.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7 \u0026amp; -1 can't be paired. Spark -9 \u0026amp; -18: Pairs with Women's Sea to Summit bags.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cstrong\u003eSpecification  \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -2°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -9°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 155cm \/ Long: 165cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 135cm \/ Long: 145cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 102cm \/ Long: 112cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox. Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 850+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 730g \/ Long: 786g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 480g \/ Long: 540g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 13L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43861720072373,"sku":"SS-DB-STSSPRK-9C-REG","price":400.0,"currency_code":"GBP","in_stock":false},{"title":"Long","offer_id":43861720105141,"sku":"SS-DB-STSSPRK-9C-LNG","price":424.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkDownSleepingBag7C-45FRegular_ASL041072-050101_USP_2_bbbfab4a-14ec-433d-9454-afbda868d517.jpg?v=1750865605"},{"product_id":"sea-to-summit-spark-down-double-sleeping-bag-9-c","title":"Sea to Summit Spark Down Double Sleeping Bag -9°C","description":"\u003cp\u003eEmbrace risk and push boundaries as a duo with the unbeatable Sea to Summit Spark Down Double Sleeping Bag -9°C. Through precise engineering and top-quality materials, this compressible double 3.5-season sleeping bag offers unmatched warmth, giving you the confidence to conquer the elements. Ideal for adventurer-seeking couples looking for a featherlight experience and the best night's sleep backpacking.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"Article: A guide to down sleeping bags...down explained\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e850+ FILL Power, RDS-certified, Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C\/45F \u0026amp; 1C\/30F Primary zip - 1\/2 length #5 with zip-plow and two sliders. Spark -9C\/15F \u0026amp; -18C\/0F Primary zip - 3\/4 length #5 with zip-plow and two sliders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical chest baffles, horizontal baffles lower half and base. SPARK 7C sewn through quilted construction throughout. SPARK -1C\/30Fbox wall baffles top half of bag and sewn through quilted construction lower half. SPARK -9C \u0026amp; -18C box wall baffle construction throughout.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C, -1C \u0026amp; -9C Standard front draft collar. SPARK -18C Double draft collars.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7 \u0026amp; -1 can't be paired. Spark -9 \u0026amp; -18: Pairs with Women's Sea to Summit bags.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cstrong\u003eSpecification  \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -2°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -9°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 268cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 246cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 209cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox. Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 850+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1543g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 985g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 20L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43861874311349,"sku":"SS-DB-STSSPRK-9C-DBLE","price":630.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkDownSleepingBag-9C-15FDouble_ASL041072-220107_PRIMARY.jpg?v=1750865604"},{"product_id":"sea-to-summit-spark-down-sleeping-bag-18-c","title":"Sea to Summit Spark Down Sleeping Bag -18°C","description":"\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eTake bold risks and conquer the elements with the unbeatable 4-season Sea to Summit Spark Down Sleeping Bag -18°C. With precise engineering and top-quality materials, this compressible bag offers unmatched warmth, empowering you to push boundaries. Perfect for the daring adventurer seeking a featherlight experience, the Spark can also work with the female version for a double bag setup or with a Sea to Summit quilt to provide extra insulation during frigid solo nights.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"Article: A guide to down sleeping bags...down explained\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cstrong\u003eFeatures\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e850+ FILL Power, RDS-certified, Goose Down with Ultra Dry Down treatment for improved water resistance in damp conditions.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C\/45F \u0026amp; 1C\/30F Primary zip - 1\/2 length #5 with zip-plow and two sliders. Spark -9C\/15F \u0026amp; -18C\/0F Primary zip - 3\/4 length #5 with zip-plow and two sliders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical chest baffles, horizontal baffles lower half and base. SPARK 7C sewn through quilted construction throughout. SPARK -1C\/30Fbox wall baffles top half of bag and sewn through quilted construction lower half. SPARK -9C \u0026amp; -18C box wall baffle construction throughout.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7C, -1C \u0026amp; -9C Standard front draft collar. SPARK -18C Double draft collars.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark 7 \u0026amp; -1 can't be paired. Spark -9 \u0026amp; -18: Pairs with Women's Sea to Summit bags.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock System integrates with StS quilts.\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cstrong\u003eSpecification  \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -10°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -18°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 155cm \/ Long: 165cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 135cm \/ Long: 145cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 102cm \/ Long: 112cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox. Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 850+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 730g \/ Long: 786g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 1113g \/ Long: 1204g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 20L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43862099067061,"sku":"SS-DB-STSSPRK-18C-REG","price":516.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":43862099099829,"sku":"SS-DB-STSSPRK-18C-LNG","price":540.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkDownSleepingBag7C-45FRegular_ASL041072-050101_USP_2_11c69e0f-e840-47db-8449-30f6d08fa4bf.jpg?v=1750865601"},{"product_id":"sea-to-summit-spark-womens-down-sleeping-bag-7-c","title":"Sea to Summit Spark Womens Down Sleeping Bag 7°C","description":"\u003cp\u003ePushing boundaries and taking risks, the Sea to Summit Spark Women's Down Sleeping Bag 7°C is the ultimate ultralight and compressible sleeping bag on the market. precision engineered for women with premium materials combined for unparalleled warmth, so you can conquer the elements with ease. Best used for ultralight backpacking. The women's specific mummy fit is narrower at the shoulder and wider at the hip, and features extra down compared to the unisex Spark models.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca rel=\"noopener\" title=\"sea to summit sleeping bag liners\" href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"Article: A guide to down sleeping bags...down explained\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e850+ FILL Power, RDS-certified, Goose Down with Ultra Dry\u003c\/li\u003e\n\u003cli\u003eDown treatment for improved water resistance in\u003cbr data-mce-fragment=\"1\"\u003edamp conditions.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003e10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eWomen's Mummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight. Wider at the hips and narrower at the shoulders for a better fit and heat retention for women.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's 7C \u0026amp; 1C Primary zip - 1\/2 length #5 with zip-plow and two sliders. Spark Women's -9C Primary zip - 3\/4 length #5 with zip-plow and two sliders.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's 7C Vertical chest baffles, horizontal baffles lower half and base, sewn through quilted construction throughout.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's -1C Vertical chest baffles, horizontal baffles lower half and base, box wall baffles top half of bag and sewn through quilted construction lower half.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's -9C Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003ePairing with unisex Sea to Summit bags, the QuiltLock system and drawcord footbox enables quilts to be secured to sleeping bags for added functionality and freedom.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 170cm \/  - Long:  185cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: 7°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit: 4°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 142cm \/ Long: 152cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 132cm \/ Long: 142cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 92cm \/ Long: 102cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 850+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 382g \/ Long: 432g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 200g \/ Long: 230g\u003c\/li\u003e\n\u003cli\u003eCompression Regular: Size: 3L \/ Long: 3L\u003c\/li\u003e\n\u003cli\u003eZip: Right\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43864257888437,"sku":"SS-DB-STSSPRKW-7C-REG","price":240.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkDownSleepingBagWomens7C-45FRegular_ASL041071-331701_USP_2.jpg?v=1750865577"},{"product_id":"sea-to-summit-spark-womens-down-sleeping-bag-1-c","title":"Sea to Summit Spark Womens Down Sleeping Bag -1°C","description":"\u003cp\u003ePushing boundaries and taking risks, the Sea to Summit Spark Women's Down Sleeping Bag -1°C is the ultimate ultralight and compressible 2.5-season sleeping bag on the market. precision engineered for women with premium materials combined for unparalleled warmth, so you can conquer the elements with ease. Best used for ultralight backpacking. The women's specific mummy fit is narrower at the shoulder and wider at the hip, and features extra down compared to the unisex Spark models.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e850+ FILL Power, RDS-certified, Goose Down with Ultra Dry\u003c\/li\u003e\n\u003cli\u003eDown treatment for improved water resistance in\u003cbr data-mce-fragment=\"1\"\u003edamp conditions.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003e10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eWomen's Mummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight. Wider at the hips and narrower at the shoulders for a better fit and heat retention for women.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's 7C \u0026amp; 1C Primary zip - 1\/2 length #5 with zip-plow and two sliders. Spark Women's -9C Primary zip - 3\/4 length #5 with zip-plow and two sliders.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's 7C Vertical chest baffles, horizontal baffles lower half and base, sewn through quilted construction throughout.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's -1C Vertical chest baffles, horizontal baffles lower half and base, box wall baffles top half of bag and sewn through quilted construction lower half.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's -9C Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003ePairing with unisex Sea to Summit bags, the QuiltLock system and drawcord footbox enables quilts to be secured to sleeping bags for added functionality and freedom.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 170cm \/  - Long:  185cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -1°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit: -7°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 142cm \/ Long: 152cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 132cm \/ Long: 142cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 92cm \/ Long: 102cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 850+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 584g \/ Long: 639g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 375g \/ Long: 430g\u003c\/li\u003e\n\u003cli\u003eCompression Regular: Size: 5L \/ Long: 8L\u003c\/li\u003e\n\u003cli\u003eZip: Right\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43864299372725,"sku":"SS-DB-STSSPRKW-1C-REG","price":320.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkDownSleepingBagWomens7C-45FRegular_ASL041071-331701_USP_2_12ec33e6-d61f-4f0d-841e-76348af223f3.jpg?v=1750865574"},{"product_id":"sea-to-summit-spark-womens-down-sleeping-bag-9-c","title":"Sea to Summit Spark Womens Down Sleeping Bag -9°C","description":"\u003cp\u003ePushing boundaries and taking risks, the Sea to Summit Spark Women's Down Sleeping Bag -9°C is the ultimate ultralight and compressible 3.5-season sleeping bag on the market. precision engineered for women with premium materials combined for unparalleled warmth, so you can conquer the elements with ease. Best used for ultralight backpacking. The women's specific mummy fit is narrower at the shoulder and wider at the hip, and features extra down compared to the unisex Spark models.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e850+ FILL Power, RDS-certified, Goose Down with Ultra Dry\u003c\/li\u003e\n\u003cli\u003eDown treatment for improved water resistance in\u003cbr data-mce-fragment=\"1\"\u003edamp conditions.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003e10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eWomen's Mummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight. Wider at the hips and narrower at the shoulders for a better fit and heat retention for women.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's 7C \u0026amp; 1C Primary zip - 1\/2 length #5 with zip-plow and two sliders. Spark Women's -9C Primary zip - 3\/4 length #5 with zip-plow and two sliders.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's 7C Vertical chest baffles, horizontal baffles lower half and base, sewn through quilted construction throughout.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's -1C Vertical chest baffles, horizontal baffles lower half and base, box wall baffles top half of bag and sewn through quilted construction lower half.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Women's -9C Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003ePairing with unisex Sea to Summit bags, the QuiltLock system and drawcord footbox enables quilts to be secured to sleeping bags for added functionality and freedom.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 170cm \/  - Long:  185cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -9°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit: -15°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 142cm \/ Long: 152cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 132cm \/ Long: 142cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 92cm \/ Long: 102cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 850+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 930g \/ Long: 1027g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 685g \/ Long: 780g\u003c\/li\u003e\n\u003cli\u003eCompression Regular: Size: 13L \/ Long: 13L\u003c\/li\u003e\n\u003cli\u003eZip: Right\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43864310972597,"sku":"SS-DB-STSSPRKW-9C-REG","price":400.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkDownSleepingBagWomens7C-45FRegular_ASL041071-331701_USP_2_41aace8a-cb57-4d04-a96d-d8348d48724c.jpg?v=1750865571"},{"product_id":"sea-to-summit-ember-down-quilt-7-c","title":"Sea to Summit Ember Down Quilt 7°c","description":"\u003cp\u003eThe Sea to Summit Ember Down Quilt 7°c provides a lightweight and compact choice for bikepackers, ultralight hikers, and travelers. Featuring premium 850+ loft Ultra-Dry Down and lightweight materials, this expertly crafted quilt eliminates the added weight of a sleeping bag zipper and the restrictive shape of traditional sleeping bags.\u003c\/p\u003e\n\u003cp\u003eEmbers also add multi-season functionality: the QuiltLock system allows an Ember to be attached to any hooded Sea to Summit sleeping bag to boost thermal performance in colder weather.\u003cbr\u003e\u003cbr\u003eThe Ember Series takes the simplicity of the quilt concept a step further - snap-on attachment straps keep your quilt located on your sleeping mat, while the drawcord base of the 7°C and -1°C gives the Ember a 'shape-shifter' function: wider at the base for more freedom of movement when it's warm, snugged down when it's cooler.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eMore Help?\u003c\/strong\u003e For further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view here: \u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Goose Down certified Responsible Down Standard (RDS).\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eComes with a water-resistant Ultra-Sil Compression Sack and Storage Cube.\u003c\/li\u003e\n\u003cli\u003eBreathable 10D nylon shell and lining for minimal weight and bulk.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes four adjustable straps to secure onto a sleeping pad.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eCushioned internal shoulder-end draw-cord.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eConstruction 7°C: Sewn-through construction. Drawcord in the foot section. Open up to a quilt or cinch tightly to create a ‘foot pocket’. -1°C: Vertical chest baffles, horizontal baffles lower half, box wall baffle construction throughout.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock system compatible: attaches to any Sea to Summit sleeping bag with a hood to provide extra warmth in colder conditions.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell\u003cbr data-mce-fragment=\"1\"\u003eSustainable design with a PFC free water repellent coating and RDS down.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMax User Height: Regular: 185cm \/ Long: 198cm\u003c\/li\u003e\n\u003cli\u003eShoulder Width Open: Regular: 120cm \/ Long: 137cm\u003c\/li\u003e\n\u003cli\u003eHip Width Open: 150cm \/ Long: 170cm\u003c\/li\u003e\n\u003cli\u003eFootbox Width Open: 87cm \/ Long: 95cm\u003c\/li\u003e\n\u003cli\u003eInsulation Type: RDS certified Goose-down Ultra-Dry\u003c\/li\u003e\n\u003cli\u003eFabric: 10-Denier Nylon shell and lining.\u003c\/li\u003e\n\u003cli\u003eBaffle Construction: Ember 7C\/45F - Box quilted sewn through baffles\u003c\/li\u003e\n\u003cli\u003eFill Power: ULTRA-DRY Down® 850+ Loft\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 200g, Long: 235g\u003c\/li\u003e\n\u003cli\u003eShape: Quilt\u003c\/li\u003e\n\u003cli\u003eComfort Temp Rating: 11°c\u003c\/li\u003e\n\u003cli\u003eLimit Temp Rating: 7°c\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 423g, Long: 486g\u003c\/li\u003e\n\u003cli\u003eCompression Size: Regular: 3L \/ Long: 5L\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43864314675381,"sku":"SS-STSEMBRQ-7-REG","price":256.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":43864314773685,"sku":"SS-STSEMBRQ-7-LNG","price":264.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/EmberDownQuilt7C-45FRegular_ASL042012-050101_USP_2.jpg?v=1750865568"},{"product_id":"sea-to-summit-ember-down-quilt-1-c","title":"Sea to Summit Ember Down Quilt -1°c","description":"\u003cp\u003eThe Sea to Summit Ember Down Quilt -1°c provides a lightweight and compact choice for bikepackers, ultralight hikers, and travelers. Featuring premium 850+ loft Ultra-Dry Down and lightweight materials, this expertly crafted quilt eliminates the added weight of a sleeping bag zipper and the restrictive shape of traditional sleeping bags.\u003c\/p\u003e\n\u003cp\u003eEmbers also add multi-season functionality: the QuiltLock system allows an Ember to be attached to any hooded Sea to Summit sleeping bag to boost thermal performance in colder weather.\u003cbr\u003e\u003cbr\u003eThe Ember Series takes the simplicity of the quilt concept a step further - snap-on attachment straps keep your quilt located on your sleeping mat, while the drawcord base of the 7°C and -1°C gives the Ember a 'shape-shifter' function: wider at the base for more freedom of movement when it's warm, snugged down when it's cooler.\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eWhat the Rock+Run Team Say\u003c\/h4\u003e\n\u003cp\u003e“I’ve been using this quilt for nearly a year now, and it has been fantastic—except on the coldest nights (below -1°C). On those nights, I pair it with a second synthetic quilt on top, which has two benefits, extra warmth and moisture management as the dew point shifts from the outer fabric of the down quilt to the outer layer of the synthetic quilt, keeping the down quilt warmer and drier.\u003c\/p\u003e\n\u003cp\u003eI’ve used the quilt in tents, bivvy bags, and hammocks without any issues. It also works wonderfully as a blanket when sitting around camp and chatting into the night. It’s an incredibly versatile product.\u003c\/p\u003e\n\u003cp\u003eThe quilt’s fabrics are light yet durable—I’m not afraid to use and abuse it. The cords, press studs, and stitching are well-crafted, with extra reinforcement where needed.\u003c\/p\u003e\n\u003cp\u003eThe stuff sack is oval-shaped, which packs more efficiently in my rucksack. It’s a small but welcome deviation from the usual design and something I’ve come to appreciate.\u003c\/p\u003e\n\u003cp\u003eMy previous quilt started my love for this style of sleep system and holds a fond place in my heart, but this one is far warmer, lighter, and more frequently used. I’m definitely becoming a quilt convert!\" - Nick\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eMore Help?\u003c\/strong\u003e For further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view here: \u003ca href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"Article: A guide to down sleeping bags...down explained\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eULTRA-DRY Down 850+ Loft 90% Down Cluster Premium Goose Down certified Responsible Down Standard (RDS).\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eComes with a water-resistant Ultra-Sil Compression Sack and Storage Cube.\u003c\/li\u003e\n\u003cli\u003eBreathable 10D nylon shell and lining for minimal weight and bulk.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes four adjustable straps to secure onto a sleeping pad.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eCushioned internal shoulder-end draw-cord.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eConstruction 7°C: Sewn-through construction. Drawcord in the foot section. Open up to a quilt or cinch tightly to create a ‘foot pocket’. -1°C: Vertical chest baffles, horizontal baffles lower half, box wall baffle construction throughout.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock system compatible: attaches to any Sea to Summit sleeping bag with a hood to provide extra warmth in colder conditions.\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell\u003cbr data-mce-fragment=\"1\"\u003eSustainable design with a PFC free water repellent coating and RDS down.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecification\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMax User Height: Regular: 185cm \/ Long: 198cm\u003c\/li\u003e\n\u003cli\u003eShoulder Width Open: Regular: 120cm \/ Long: 137cm\u003c\/li\u003e\n\u003cli\u003eHip Width Open: 150cm \/ Long: 170cm\u003c\/li\u003e\n\u003cli\u003eFootbox Width Open: 87cm \/ Long: 95cm\u003c\/li\u003e\n\u003cli\u003eInsulation Type: RDS certified Goose-down Ultra-Dry\u003c\/li\u003e\n\u003cli\u003eFabric: 10-Denier Nylon shell and lining.\u003c\/li\u003e\n\u003cli\u003eBaffle Construction: Ember 7C\/45F - Box quilted sewn through baffles\u003c\/li\u003e\n\u003cli\u003eFill Power: ULTRA-DRY Down® 850+ Loft\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 350g, Long: 415g\u003c\/li\u003e\n\u003cli\u003eShape: Quilt\u003c\/li\u003e\n\u003cli\u003eComfort Temp Rating: 4°c\u003c\/li\u003e\n\u003cli\u003eLimit Temp Rating: -1°c\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 544g, Long: 619g\u003c\/li\u003e\n\u003cli\u003eCompression Size: Regular: 8L \/ Long: 8L\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43864348917941,"sku":"SS-STSEMBRQ-1-REG","price":320.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":43864348950709,"sku":"SS-STSEMBRQ-1-LNG","price":336.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/EmberDownQuilt7C-45FRegular_ASL042012-050101_USP_2_56f1f8c7-dc0b-45c5-aace-e2d1700dfce7.jpg?v=1750865565"},{"product_id":"sea-to-summit-spark-pro-down-sleeping-bag-1-c","title":"Sea to Summit Spark Pro Down Sleeping Bag -1°C","description":"\u003cp\u003eBoasting an impressive 900+ FILL Power, RDS-certified, Goose Down with Ultra Dry, the Sea to Summit Spark Pro -1°C sleeping bag is the only option for ultralight backpacking adventures that puts comfort at the forefront. With the ability to be adapted to a range of conditions, the Spark Pro is as lightweight as it is versatile and functional. The optimal warmth-to-weight ratio makes this bag as comfortable as it is compact and easily packable.\u003cbr\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca rel=\"noopener\" title=\"sea to summit sleeping bag liners\" href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e900+ FILL Power, RDS-certified, Goose Down with Ultra Dry\u003c\/li\u003e\n\u003cli\u003eDown treatment for improved water resistance in damp conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFeaturing 10-Denier Nylon shell and lining fabric, these lightweight fabrics offer breathability, protection and effective temperature regulation for premium comfort in the outdoors.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10D Nylon's waterproof and breathable features offer added protection and prevents exposure to tent wall condensation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFree Flow Zip System: Primary zip - full length #5 with zip-plow and two sliders. Secondary zip - 1\/4 length #3 with zip-plow and two sliders. Footbox zip - #3 with two sliders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Pro -1 Vertical chest baffles, horizontal baffles lower half and base, box wall baffles top half of bag and sewn through quilted construction lower half. Spark Pro -9 Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFitted front draft collar: scalloped over the neck and oversized at the shoulders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTechnical fitted hood with soft touch adjustment. Extra deep for cosy like feel.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePairs with Women's Sea to Summit bags.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: 3°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -2°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 155cm \/ Long: 165cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 135cm \/ Long: 145cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 102cm \/ Long: 112cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox. Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 900+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 619g \/ Long: 672g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 310g \/ Long: 356g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 8L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43864379949237,"sku":"SS-DB-STSSPRKPRO-1C-REG","price":400.0,"currency_code":"GBP","in_stock":false},{"title":"Long","offer_id":43864379982005,"sku":"SS-DB-STSSPRKPRO-1C-LNG","price":440.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkProDownSleepingBag-1C-30FRegular_ASL041071-050103_USP_2.jpg?v=1750865561"},{"product_id":"sea-to-summit-spark-pro-down-sleeping-bag-9-c","title":"Sea to Summit Spark Pro Down Sleeping Bag -9°C","description":"\u003cp\u003eBoasting an impressive 900+ FILL Power, RDS-certified, Goose Down with Ultra Dry, the Sea to Summit Spark Pro -9°C sleeping bag is the only option for ultralight backpacking adventures that puts comfort at the forefront. With the ability to be adapted to a range of conditions, the Spark Pro is as lightweight as it is versatile and functional. The optimal warmth-to-weight ratio makes this bag as comfortable as it is compact and easily packable.\u003c\/p\u003e\n\u003cp\u003eUltralight does not mean ultra-tight: The Spark mummy sleeping bags are snug but still have adequate wiggle room for the performance-oriented, backcountry user.\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"Article: A guide to down sleeping bags...down explained\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e900+ FILL Power, RDS-certified, Goose Down with Ultra Dry\u003c\/li\u003e\n\u003cli\u003eDown treatment for improved water resistance in damp conditions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFeaturing 10-Denier Nylon shell and lining fabric, these lightweight fabrics offer breathability, protection and effective temperature regulation for premium comfort in the outdoors.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e10D Nylon's waterproof and breathable features offer added protection and prevents exposure to tent wall condensation.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMummy Fit: Fitted cut with generous footbox and technical hood, to maximise thermal efficiency and minimise bulk and weight.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFree Flow Zip System: Primary zip - full length #5 with zip-plow and two sliders. Secondary zip - 1\/4 length #3 with zip-plow and two sliders. Footbox zip - #3 with two sliders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSpark Pro -1 Vertical chest baffles, horizontal baffles lower half and base, box wall baffles top half of bag and sewn through quilted construction lower half. Spark Pro -9 Vertical chest baffles, horizontal baffles lower half and base, box wall baffle construction throughout.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFitted front draft collar: scalloped over the neck and oversized at the shoulders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTechnical fitted hood with soft touch adjustment. Extra deep for cosy like feel.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePairs with Women's Sea to Summit bags.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -2°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -9°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 155cm \/ Long: 165cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 135cm \/ Long: 145cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 102cm \/ Long: 112cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: 10-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox. Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry goose down\u003c\/li\u003e\n\u003cli\u003eFill power: 900+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 784g \/ Long: 861g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 480g \/ Long: 504g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 13L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003cli\u003eDraft tube\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":43864442077365,"sku":"SS-DB-STSSPRKPRO-9C-REG","price":480.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":43864442110133,"sku":"SS-DB-STSSPRKPRO-9C-LNG","price":512.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/SparkProDownSleepingBag-1C-30FRegular_ASL041071-050103_USP_2_a4ccee7f-1c1d-4c39-892f-6820cbf4c500.jpg?v=1750865556"},{"product_id":"sea-to-summit-ascent-down-sleeping-bag-1-c","title":"Sea to Summit Ascent Down Sleeping Bag -1°C","description":"\u003cp\u003eThe Sea to Summit Ascent -1°C down mummy sleeping bag is a 2.5-season bag that offers unparalleled versatility, thanks to its advanced design and premium down insulation, making it ideal for various climates backpacking and camping. Whether you're embarking on a lengthy hike or a quick weekend trip, the ultra-lightweight 750+ RDS Certified duck down provides exceptional warmth in cold conditions, while the innovative triple-zip Free-Flow Zip system allows for excellent ventilation in warmer weather. Shaped to allow a natural sleeping position for comfort, while light and compact enough to go anywhere. You can also form a snug double sleeping bag by zipping to any women's sleeping bag from Sea to Summit.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca rel=\"noopener\" title=\"sea to summit sleeping bag liners\" href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"Article: A guide to down sleeping bags...down explained\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eULTRA-DRY Down 750+ Loft 90% Down Cluster Premium duck.\u003c\/li\u003e\n\u003cli\u003eDown certified Responsible Down Standard (RDS).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFree-flow zip system: full-length YKK® #5 main side zip, half-length opposite side zip, and foot zip provides unparalleled ventilation and use as a comforter.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical baffles over the chest to prevent down shifting as you roll over in your sleep.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShaped hood, oversized draft collar, and zip draft tube keep the cold out and the warmth in.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInternal pocket for phone \/ GPS \/ valuables.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eForm a snug double sleeping bag by zipping to any women's sleeping bag from Sea to Summit.\u003c\/li\u003e\n\u003cli\u003eComes with an Ultra-Sil compression bag and storage cell.\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long:  198cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: 3°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -2°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 158cm \/ Long: 168cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 146cm \/ Long: 156cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 119cm \/ Long: 129cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: Recycled 20-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry duck down\u003c\/li\u003e\n\u003cli\u003eFill power: 750+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 782g \/ Long: 879g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 300g \/ Long: 343g\u003c\/li\u003e\n\u003cli\u003eCompression Size: 8L\u003c\/li\u003e\n\u003cli\u003eZip: Left\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":44099729522869,"sku":"SS-DB-STSASC-1C-REG","price":300.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":44099729555637,"sku":"SS-DB-STSASC-1C-LNG","price":320.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/AscentDownSleepingBag-1C-30FRegular_ASL041101-052001_USP_3_ca6d7f48-69da-4da5-b8da-f1233f54da99.jpg?v=1750865375"},{"product_id":"sea-to-summit-ascent-womens-down-sleeping-bag-1-c","title":"Sea to Summit Ascent Womens Down Sleeping Bag -1°C","description":"\u003cp\u003eThe Sea to Summit Ascent Womens -1°C down mummy sleeping bag is a 3.5-season bag that offers unparalleled versatility, thanks to its advanced design and premium down insulation, making it ideal for various climates and outdoor activities. Whether you're embarking on a lengthy hike or a quick weekend trip, the ultra-lightweight 750+ RDS Certified duck down provides exceptional warmth in cold conditions, while the innovative triple-zip Free-Flow Zip system allows for excellent ventilation in warmer weather. Shaped with a relaxed Mummy Fit specifically for women: A more relaxed yet tapered mummy fit with high thermal performance. Wider at the hips and narrower at the shoulders for a better fit and heat retention for women. You can also form a snug double sleeping bag by zipping to any men's sleeping bag from Sea to Summit.\u003cbr data-mce-fragment=\"1\"\u003e\u003c\/p\u003e\n\u003cp\u003ePair up your Sea to Summit sleeping bag with a compatible liner for the ultimate sleep system. \u003ca href=\"https:\/\/rockrun.com\/collections\/sleeping-bag-liners\/sea-to-summit\" title=\"sea to summit sleeping bag liners\" rel=\"noopener\" target=\"_blank\"\u003eSleeping Bag Liners\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Help?\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view \u003cspan\u003ehere: \u003c\/span\u003e\u003ca title=\"Article: A guide to down sleeping bags...down explained\" href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\"\u003eA Guide to Down Sleeping Bags\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003eFeatures\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eULTRA-DRY Down 750+ Loft 90% Down Cluster Premium Duck.\u003c\/li\u003e\n\u003cli\u003eDown certified Responsible Down Standard (RDS).\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFree-flow zip system: full-length YKK® #5 main side zip, half-length opposite side zip, and foot zip provides unparalleled ventilation and use as a comforter.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eVertical baffles over the chest to prevent down shifting as you roll over in your sleep.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShaped hood, oversized draft collar, and zip draft tube keep the cold out and the warmth in.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInternal pocket for phone \/ GPS \/ valuables.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes lightweight Ultra-Sil compression bag and storage cell.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eForm a snug double sleeping bag by zipping to any men's sleeping bag from Sea to Summit.\u003c\/li\u003e\n\u003cli\u003eComes with an Ultra-Sil compression bag and storage cell.\u003c\/li\u003e\n\u003cli\u003eQuiltLock: Every Sea to Summit sleeping back features the QuiltLock system that uses the snap locks located at the shoulder and foot end of Sea to Summit sleeping bags plus the quilt footbox \/ quilt straps to secure a quilt to the sleeping bag. This adds thermal performance and versatility to your sleep system: your integrated Sea to Summit quilt now works for ultralight summer adventures and turns your three-season bag into a four-season sleep system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum User Height:  Regular: 170cm \/  - Long:  185cm\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -1°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -8°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Regular: 145cm \/ Long: 155cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Regular: 140cm \/ Long: 150cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Regular: 109cm \/ Long: 119cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: Recycled 20-Denier Nylon shell and lining. 10-Denier Nylon waterproof-breathable hood and footbox.\u003c\/li\u003e\n\u003cli\u003eFilling: Ultra-Dry Duck down\u003c\/li\u003e\n\u003cli\u003eFill power: 750+\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 893g \/ Long: 1002g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 459g \/ Long: 520g\u003c\/li\u003e\n\u003cli\u003eCompression Regular: Size: 10L \/ Long: 10L\u003c\/li\u003e\n\u003cli\u003eZip: Right\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"Regular","offer_id":44099801579701,"sku":"SS-DB-STSASCW-1C-REG","price":308.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/AscentDownSleepingBagWomens-1C-30FRegular_ASL041101-330401_USP_3_d578c8e3-b11b-4980-b75f-2bfea42e667e.jpg?v=1750865372"},{"product_id":"sea-to-summit-aeros-ultralight-traveller-pillow","title":"Sea to Summit Aeros Ultralight Traveller Pillow","description":"\u003cp\u003eThe Aeros Ultralight Traveller Pillow compresses down to a size comparable to the two packets of peanuts typically given as in-flight meals by airlines, but offers superior comfort for extended use. With a supportive TPU air bladder and oversized \"arms\" for added support, it can be adjusted to fit snugly between your neck and the headrest. 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Its 50D polyester knit cover is soft and indulgently comfortable, fitting perfectly over a supportive air bladder with oversized arms and a slim neck area for a customized fit with your headrest. The versatile, low-profile valve allows you to easily find your desired level of comfort. 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