{"title":"Sea to Summit Sleeping Bags","description":"\n\u003cdiv class=\"hide-on-mobile\"\u003e\n\u003cp\u003eShop for Sea to Summit sleeping bags from our collection below...\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor more information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCheck out the Rock+Run \u003ca href=\"https:\/\/rockrun.com\/blogs\/the-flash-rock-run-blog\/a-guide-to-down-sleeping-bags-buying-guide\" title=\"A Guide to Down Sleeping Bags | Buying Guide\"\u003eA Guide to Down Sleeping Bags | Buying Guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eNeed advice? \u003ca title=\"Contact Us\" href=\"https:\/\/rockrun.com\/pages\/contact-us\"\u003eContact Us\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUseful Links\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca title=\"Sleeping Bags Collection\" href=\"https:\/\/rockrun.com\/collections\/sleeping-bags\"\u003eAll Sleeping Bags\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"Sea to Summit Brand Page\" href=\"https:\/\/rockrun.com\/collections\/sea-to-summit\"\u003eSea to Summit Brand Page\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","products":[{"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-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":true},{"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-hamelin-synthetic-sleeping-bag-1-c","title":"Sea to Summit Hamelin Synthetic Sleeping Bag -1°C","description":"\u003cp\u003eIntroducing the Sea to Summit Hamelin Synthetic Sleeping Bag, perfect for your next backpacking adventure. With modern advancements in synthetic fabrics, this bag is both lightweight and versatile, able to withstand damp and cold conditions. Leave heavy, traditional bags behind and enjoy a comfortable night's sleep with this high-performance backpacking option.\u003c\/p\u003e\n\u003cp\u003eMade from recycled materials, and features an efficient Contour mummy shape that offers room to move in any sleeping position with strategically placed Revive Loft insulation for thermal regulation. The Free Flow full-length side zipper with double sliders converts the bag to a quilt and allows for customisable vents. It is made from recycled materials and is bluesign APPROVED non-PFAS water-repellent finish allows you to rest with ease. Hamelin is part of our 1% for the Planet commitment.\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\u003ereVIVE\u003c\/strong\u003e: Part of Sea To Summit's reVIVE range of sleeping bags \u0026amp; sleeping mats, The reVIVE Range has the smallest environmental footprint of any sleep system product S-T-S has ever offered. They are not simply a revision to the way outdoor products have been made in the past; they are a blueprint for how gear will be built in the future.\u003c\/p\u003e\n\u003cp\u003eSolution Dying: A process where dye is added to the liquid polymer before the fibre is extruded. The resultant fabrics will not fade over time in the same way conventional fabrics will. The real upside is a massive reduction in water and chemical use and in secondary emissions) such as CO₂ during manufacture. \u003c\/p\u003e\n\u003cp\u003ereVIVE products – and other Sea to Summit equipment – utilising recycled materials that are RCS-certified. The Recycled Claim Standard (RCS) is an international, voluntary standard that uses the ISO definition for recycled, sets criteria for third-party certification of recycled input and ensures a chain of custody throughout the supply chain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBluesign APPROVED, 20D recycled polyester shell with non-PFC DWR. 20D BluesignAPPROVED recycled polyester liner.\u003c\/li\u003e\n\u003cli\u003e100% RCS-certified, post-consumer, recycled, multi-denier synthetic insulation.\u003c\/li\u003e\n\u003cli\u003eFree Flow zipper system and relaxed mummy fit for comfort and performance across multiple seasons, varying weather and challenging environments. \u003c\/li\u003e\n\u003cli\u003eMens and women models can be zipped together to form one large sleeping bag for two thanks to opposite side zippers.\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\u003eIntended Use: Backpacking\/camping\u003c\/li\u003e\n\u003cli\u003eSeason: 2-3\u003c\/li\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eFit: Countur - relaxed mummy\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: 3°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -1°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: bluesign APPROVED, 50D recycled polyester shell, non-PFC DWR. 50D bluesign APPROVED recycled polyester liner. \u003c\/li\u003e\n\u003cli\u003eInsulation: 100% RCS certified, postconsumer recycled, multi denier polyester. Offset insulation avoids cold spots\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1124g \/ Long: 1263g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 710g \/ Long: 805g\u003c\/li\u003e\n\u003cli\u003eCompression Size: -\u003c\/li\u003e\n\u003cli\u003eZip: The Main Left Side zipper continues through the footbox. Zipper plough, double sliders. Half-length zipper on the opposite side.\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":54963893895541,"sku":"SS-DB-STSSHAM-1C-REG","price":144.5,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":54963893928309,"sku":"SS-DB-STSSHAM-1C-LONG","price":153.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/2_29bf770c-81d3-48ba-9daf-3bf7400bd17a.png?v=1750864268"},{"product_id":"sea-to-summit-hamelin-synthetic-sleeping-bag-9-c","title":"Sea to Summit Hamelin Synthetic Sleeping Bag -9°C","description":"\u003cp\u003eIntroducing the Sea to Summit Hamelin Synthetic Sleeping Bag, perfect for your next backpacking adventure. With modern advancements in synthetic fabrics, this bag is both lightweight and versatile, able to withstand damp and cold conditions. Leave heavy, traditional bags behind and enjoy a comfortable night's sleep with this high-performance backpacking option.\u003c\/p\u003e\n\u003cp\u003eMade from recycled materials, and features an efficient Contour mummy shape that offers room to move in any sleeping position with strategically placed Revive Loft insulation for thermal regulation. The Free Flow full-length side zipper with double sliders converts the bag to a quilt and allows for customisable vents. It is made from recycled materials and is bluesign APPROVED non-PFAS water-repellent finish allows you to rest with ease. Hamelin is part of our 1% for the Planet commitment.\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\u003ereVIVE\u003c\/strong\u003e: Part of Sea To Summit's reVIVE range of sleeping bags \u0026amp; sleeping mats, The reVIVE Range has the smallest environmental footprint of any sleep system product S-T-S has ever offered. They are not simply a revision to the way outdoor products have been made in the past; they are a blueprint for how gear will be built in the future.\u003c\/p\u003e\n\u003cp\u003eSolution Dying: A process where dye is added to the liquid polymer before the fibre is extruded. The resultant fabrics will not fade over time in the same way conventional fabrics will. The real upside is a massive reduction in water and chemical use and in secondary emissions) such as CO₂ during manufacture. \u003c\/p\u003e\n\u003cp\u003ereVIVE products – and other Sea to Summit equipment – utilising recycled materials that are RCS-certified. The Recycled Claim Standard (RCS) is an international, voluntary standard that uses the ISO definition for recycled, sets criteria for third-party certification of recycled input and ensures a chain of custody throughout the supply chain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBluesign APPROVED, 20D recycled polyester shell with non-PFC DWR. 20D BluesignAPPROVED recycled polyester liner.\u003c\/li\u003e\n\u003cli\u003e100% RCS-certified, post-consumer, recycled, multi-denier synthetic insulation.\u003c\/li\u003e\n\u003cli\u003eFree Flow zipper system and relaxed mummy fit for comfort and performance across multiple seasons, varying weather and challenging environments. \u003c\/li\u003e\n\u003cli\u003eMens and women models can be zipped together to form one large sleeping bag for two thanks to opposite side zippers.\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\u003eIntended Use: Backpacking\/camping\u003c\/li\u003e\n\u003cli\u003eSeason: 3-4\u003c\/li\u003e\n\u003cli\u003eMaximum User Height:  Regular: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eFit: Countur - relaxed mummy\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: 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: bluesign APPROVED, 50D recycled polyester shell, non-PFC DWR. 50D bluesign APPROVED recycled polyester liner. \u003c\/li\u003e\n\u003cli\u003eInsulation: 100% RCS certified, postconsumer recycled, multi denier polyester. Offset insulation avoids cold spots\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1626g \/ Long: 1837g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 1210g \/ Long: 1375g\u003c\/li\u003e\n\u003cli\u003eCompression Size: -\u003c\/li\u003e\n\u003cli\u003eZip: The Main Left Side zipper continues through the footbox. Zipper plough, double sliders. Half-length zipper on the opposite side.\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":54964108263797,"sku":"SS-DB-STSSHAM-9C-REG","price":161.5,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":54964108296565,"sku":"SS-DB-STSSHAM-9C-LONG","price":170.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/1_800be48d-8d49-420f-aef7-670d6b7ce7b3.png?v=1750864265"},{"product_id":"sea-to-summit-hamelin-womens-synthetic-sleeping-bag-9-c","title":"Sea to Summit Hamelin Womens Synthetic Sleeping Bag -9°C","description":"\u003cp\u003eIntroducing the women's Sea to Summit Hamelin Synthetic Sleeping Bag, perfect for your next backpacking adventure. With modern advancements in synthetic fabrics, this bag is both lightweight and versatile, able to withstand damp and cold conditions. Leave heavy, traditional bags behind and enjoy a comfortable night's sleep with this high-performance backpacking option.\u003c\/p\u003e\n\u003cp\u003eThis specially designed bag offers a more personalised fit for women, ensuring a comfortable and warm sleep by conforming to your body shape and eliminating any cold spots.\u003c\/p\u003e\n\u003cp\u003eMade from recycled materials, and features an efficient Contour mummy shape that offers room to move in any sleeping position with strategically placed Revive Loft insulation for thermal regulation. The Free Flow full-length side zipper with double sliders converts the bag to a quilt and allows for customisable vents. It is made from recycled materials and is bluesign APPROVED non-PFAS water-repellent finish allows you to rest with ease. Hamelin is part of our 1% for the Planet commitment.\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\u003ereVIVE\u003c\/strong\u003e: Part of Sea To Summit's reVIVE range of sleeping bags \u0026amp; sleeping mats, The reVIVE Range has the smallest environmental footprint of any sleep system product S-T-S has ever offered. They are not simply a revision to the way outdoor products have been made in the past; they are a blueprint for how gear will be built in the future.\u003c\/p\u003e\n\u003cp\u003eSolution Dying: A process where dye is added to the liquid polymer before the fibre is extruded. The resultant fabrics will not fade over time in the same way conventional fabrics will. The real upside is a massive reduction in water and chemical use and in secondary emissions) such as CO₂ during manufacture. \u003c\/p\u003e\n\u003cp\u003ereVIVE products – and other Sea to Summit equipment – utilising recycled materials that are RCS-certified. The Recycled Claim Standard (RCS) is an international, voluntary standard that uses the ISO definition for recycled, sets criteria for third-party certification of recycled input and ensures a chain of custody throughout the supply chain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBluesign APPROVED, 20D recycled polyester shell with non-PFC DWR. 20D BluesignAPPROVED recycled polyester liner.\u003c\/li\u003e\n\u003cli\u003e100% RCS-certified, post-consumer, recycled, multi-denier synthetic insulation.\u003c\/li\u003e\n\u003cli\u003eFree Flow zipper system and relaxed mummy fit for comfort and performance across multiple seasons, varying weather and challenging environments. \u003c\/li\u003e\n\u003cli\u003eMens and women models can be zipped together to form one large sleeping bag for two thanks to opposite side zippers.\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\u003eIntended Use: Backpacking\/camping\u003c\/li\u003e\n\u003cli\u003eSeason: 3-4\u003c\/li\u003e\n\u003cli\u003eMaximum User Height:  Regular: 170cm \/  - Long: 185cm\u003c\/li\u003e\n\u003cli\u003eFit: Countur - relaxed mummy\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -9°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -16°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: bluesign APPROVED, 50D recycled polyester shell, non-PFC DWR. 50D bluesign APPROVED recycled polyester liner. \u003c\/li\u003e\n\u003cli\u003eInsulation: 100% RCS certified, postconsumer recycled, multi denier polyester. Offset insulation avoids cold spots\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1626g \/ Long: 1837g\u003c\/li\u003e\n\u003cli\u003eFill Weight: Regular: 2015g \/ Long: 2290g\u003c\/li\u003e\n\u003cli\u003eCompression Size: -\u003c\/li\u003e\n\u003cli\u003eZip: The Main Left Side zipper continues through the footbox. Zipper plough, double sliders. Half-length zipper on the opposite side.\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":54964385841525,"sku":"SS-DB-STSSHAMW-9C-REG","price":161.5,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":54964385874293,"sku":"SS-DB-STSSHAMW-9C-LONG","price":170.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/FREESHIPPING_2.png?v=1750864261"},{"product_id":"sea-to-summit-hamelin-womens-synthetic-sleeping-bag-1-c","title":"Sea to Summit Hamelin Womens Synthetic Sleeping Bag -1°C","description":"\u003cp\u003eIntroducing the women's Sea to Summit Hamelin Synthetic Sleeping Bag, perfect for your next backpacking adventure. With modern advancements in synthetic fabrics, this bag is both lightweight and versatile, able to withstand damp and cold conditions. Leave heavy, traditional bags behind and enjoy a comfortable night's sleep with this high-performance backpacking option.\u003c\/p\u003e\n\u003cp\u003eThis specially designed bag offers a more personalised fit for women, ensuring a comfortable and warm sleep by conforming to your body shape and eliminating any cold spots.\u003c\/p\u003e\n\u003cp\u003eMade from recycled materials, and features an efficient Contour mummy shape that offers room to move in any sleeping position with strategically placed Revive Loft insulation for thermal regulation. The Free Flow full-length side zipper with double sliders converts the bag to a quilt and allows for customisable vents. It is made from recycled materials and is bluesign APPROVED non-PFAS water-repellent finish allows you to rest with ease. Hamelin is part of our 1% for the Planet commitment.\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\u003ereVIVE\u003c\/strong\u003e: Part of Sea To Summit's reVIVE range of sleeping bags \u0026amp; sleeping mats, The reVIVE Range has the smallest environmental footprint of any sleep system product S-T-S has ever offered. They are not simply a revision to the way outdoor products have been made in the past; they are a blueprint for how gear will be built in the future.\u003c\/p\u003e\n\u003cp\u003eSolution Dying: A process where dye is added to the liquid polymer before the fibre is extruded. The resultant fabrics will not fade over time in the same way conventional fabrics will. The real upside is a massive reduction in water and chemical use and in secondary emissions) such as CO₂ during manufacture. \u003c\/p\u003e\n\u003cp\u003ereVIVE products – and other Sea to Summit equipment – utilising recycled materials that are RCS-certified. The Recycled Claim Standard (RCS) is an international, voluntary standard that uses the ISO definition for recycled, sets criteria for third-party certification of recycled input and ensures a chain of custody throughout the supply chain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBluesign APPROVED, 20D recycled polyester shell with non-PFC DWR. 20D BluesignAPPROVED recycled polyester liner.\u003c\/li\u003e\n\u003cli\u003e100% RCS-certified, post-consumer, recycled, multi-denier synthetic insulation.\u003c\/li\u003e\n\u003cli\u003eFree Flow zipper system and relaxed mummy fit for comfort and performance across multiple seasons, varying weather and challenging environments. \u003c\/li\u003e\n\u003cli\u003eMens and women models can be zipped together to form one large sleeping bag for two thanks to opposite side zippers.\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\u003eIntended Use: Backpacking\/camping\u003c\/li\u003e\n\u003cli\u003eSeason: 2-3\u003c\/li\u003e\n\u003cli\u003eMaximum User Height:  Regular: 170cm \/  - Long: 185cm\u003c\/li\u003e\n\u003cli\u003eFit: Countur - relaxed mummy\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: bluesign APPROVED, 50D recycled polyester shell, non-PFC DWR. 50D bluesign APPROVED recycled polyester liner. \u003c\/li\u003e\n\u003cli\u003eInsulation: 100% RCS certified, postconsumer recycled, multi denier polyester. Offset insulation avoids cold spots\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: Regular: 1447g \/ Long: 1645g\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompression Size: -\u003c\/li\u003e\n\u003cli\u003eZip: The Main Left Side zipper continues through the footbox. Zipper plough, double sliders. Half-length zipper on the opposite side.\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":54964494434677,"sku":"SS-DB-STSSHAMW-1C-REG","price":144.5,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":54964494467445,"sku":"SS-DB-STSSHAMW-1C-LONG","price":153.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/HamelinWomensSyntheticSleepingBag-1C-30F_R_ASL043132-050801_PRIMARY.jpg?v=1750864258"},{"product_id":"sea-to-summit-boab-synthetic-unisex-sleeping-bag","title":"Sea to Summit Boab Synthetic Unisex Sleeping Bag -1°C","description":"\u003cp\u003eThe Boab is a comfortable, roomy, recycled synthetic unisex sleeping bag made for camping nights that accompany climbing, bouldering, fishing, paddling, or trekking adventures. It easily converts into a quilt with a full-length zipper extending through the footbox. Dual zipper sliders allow for customised ventilation for temperature regulation in any weather. Moisture-wicking lining and a durable Bluesign APPROVED RCS-recycled fabric (with non-PFAS water-repellency) keep you snug in uncertain weather. Easy to care for synthetic insulation with RCS-recycled fabrics, 100% RCS-recycled polyester makes this resilient bag up for any task. Boab is part of our 1% for the Planet commitment. If you are looking for a performance bag that's easily maintained, you find muumy-shaped bags a little constrictive and can cover a multitude of your day-to-day adventures, then the Boab is the one for you.\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\u003ereVIVE\u003c\/strong\u003e: Part of Sea To Summit's reVIVE range of sleeping bags \u0026amp; sleeping mats, The reVIVE Range has the smallest environmental footprint of any sleep system product S-T-S has ever offered. They are not simply a revision to the way outdoor products have been made in the past; they are a blueprint for how gear will be built in the future.\u003c\/p\u003e\n\u003cp\u003eSolution Dying: A process where dye is added to the liquid polymer before the fibre is extruded. The resultant fabrics will not fade over time in the same way conventional fabrics will. The real upside is a massive reduction in water and chemical use and in secondary emissions) such as CO₂ during manufacture. \u003c\/p\u003e\n\u003cp\u003ereVIVE products – and other Sea to Summit equipment – utilising recycled materials that are RCS-certified. The Recycled Claim Standard (RCS) is an international, voluntary standard that uses the ISO definition for recycled, sets criteria for third-party certification of recycled input and ensures a chain of custody throughout the supply chain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ebluesign APPROVED fabrics 50D recycled polyester shell with nonPFC DWR. 50D bluesign APPROVED fabrics recycled polyester liner\u003c\/li\u003e\n\u003cli\u003e100% RCS-certified, post-consumer, recycled, multi-denier synthetic insulation.\u003c\/li\u003e\n\u003cli\u003eGenerous, gender-neutral cut offers plenty of room to move – ideal for those who find mummy bags constrictive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntended Use: Camping\u003c\/li\u003e\n\u003cli\u003eSeason: 2-3\u003c\/li\u003e\n\u003cli\u003eMaximum User Height:  Short: Regular\/Regular Wide: 185cm \/  - Long: 198cm\u003c\/li\u003e\n\u003cli\u003eFit: Tapered rectangular\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: 2°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -1°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Short: 142cm Regular: 152cm Regular Wide: 172cm \/ Long: 162cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Short: 135cm Regular: 145cm Regular Wide: 165cm \/ Long: 155cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Short: 90cm Regular: 100cm Regular Wide: 120cm \/ Long: 110cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: bluesign APPROVED fabrics 50D recycled polyester shell with non PFC DWR.\u003c\/li\u003e\n\u003cli\u003eInsulation: 100% RCS certified, postconsumer recycled, multi denier polyester. Offset insulation avoids cold spots\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: Short: 1227g Regular: 1391g Regular Wide: 1550g \/ Long: 1563g\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompression Size: -\u003c\/li\u003e\n\u003cli\u003eZip: The Main Left Side zipper continues through the footbox. Zipper plough, double sliders.\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":"Short","offer_id":54964677837173,"sku":"SS-DB-STSSBOAB-1C-SHORT","price":111.0,"currency_code":"GBP","in_stock":true},{"title":"Regular","offer_id":54964536377717,"sku":"SS-DB-STSSBOAB-1C-REG","price":111.0,"currency_code":"GBP","in_stock":false},{"title":"Regular Wide","offer_id":54964677869941,"sku":"SS-DB-STSSBOAB-1C-REGWIDE","price":119.0,"currency_code":"GBP","in_stock":false},{"title":"Long","offer_id":54964536410485,"sku":"SS-DB-STSSBOAB-1C-LONG","price":119.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/BoabSyntheticSleepingBag-1C-30F_R_ASL043121-052002_PRIMARY.jpg?v=1750864255"},{"product_id":"sea-to-summit-boab-synthetic-unisex-sleeping-bag-9-c","title":"Sea to Summit Boab Synthetic Unisex Sleeping Bag -9°C","description":"\u003cp\u003eThe Boab is a comfortable, roomy, recycled synthetic unisex sleeping bag made for camping nights that accompany climbing, bouldering, fishing, paddling, or trekking adventures. It easily converts into a quilt with a full-length zipper extending through the footbox. Dual zipper sliders allow for customised ventilation for temperature regulation in any weather. Moisture-wicking lining and a durable Bluesign APPROVED RCS-recycled fabric (with non-PFAS water-repellency) keep you snug in uncertain weather. Easy to care for synthetic insulation with RCS-recycled fabrics, 100% RCS-recycled polyester makes this resilient bag up for any task. Boab is part of our 1% for the Planet commitment. If you are looking for a performance bag that's easily maintained, you find muumy-shaped bags a little constrictive and can cover a multitude of your day-to-day adventures, then the Boab is the one for you.\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\u003ereVIVE\u003c\/strong\u003e: Part of Sea To Summit's reVIVE range of sleeping bags \u0026amp; sleeping mats, The reVIVE Range has the smallest environmental footprint of any sleep system product S-T-S has ever offered. They are not simply a revision to the way outdoor products have been made in the past; they are a blueprint for how gear will be built in the future.\u003c\/p\u003e\n\u003cp\u003eSolution Dying: A process where dye is added to the liquid polymer before the fibre is extruded. The resultant fabrics will not fade over time in the same way conventional fabrics will. The real upside is a massive reduction in water and chemical use and in secondary emissions) such as CO₂ during manufacture. \u003c\/p\u003e\n\u003cp\u003ereVIVE products – and other Sea to Summit equipment – utilising recycled materials that are RCS-certified. The Recycled Claim Standard (RCS) is an international, voluntary standard that uses the ISO definition for recycled, sets criteria for third-party certification of recycled input and ensures a chain of custody throughout the supply chain.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ebluesign APPROVED fabrics 50D recycled polyester shell with nonPFC DWR. 50D bluesign APPROVED fabrics recycled polyester liner\u003c\/li\u003e\n\u003cli\u003e100% RCS-certified, post-consumer, recycled, multi-denier synthetic insulation.\u003c\/li\u003e\n\u003cli\u003eGenerous, gender-neutral cut offers plenty of room to move – ideal for those who find mummy bags constrictive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecification  \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIntended Use: Camping\u003c\/li\u003e\n\u003cli\u003eSeason: 3-4\u003c\/li\u003e\n\u003cli\u003eMaximum User Height:  Short: 170cm. Regular\/Regular Wide: 185cm. Long: 198cm\u003c\/li\u003e\n\u003cli\u003eFit: Tapered rectangular\u003c\/li\u003e\n\u003cli\u003eComfort Temperature: -4°C\u003c\/li\u003e\n\u003cli\u003eComfort Temperature limit:  -9°C\u003c\/li\u003e\n\u003cli\u003eShoulder width:  Short: 142cm. Regular: 152cm. Regular Wide: 172cm \/ Long: 162cm\u003c\/li\u003e\n\u003cli\u003eWaist With: Short: 135cm Regular: 145cm Regular Wide: 165cm \/ Long: 155cm\u003c\/li\u003e\n\u003cli\u003eFoot box width:  Short: 90cm Regular: 100cm Regular Wide: 120cm \/ Long: 110cm\u003c\/li\u003e\n\u003cli\u003eInsulated collar: Yes\u003c\/li\u003e\n\u003cli\u003eShell Fabric: bluesign APPROVED fabrics 50D recycled polyester shell with non PFC DWR.\u003c\/li\u003e\n\u003cli\u003eInsulation: 100% RCS certified, postconsumer recycled, multi denier polyester. Offset insulation avoids cold spots\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: Short: 1623g Regular: 1854g Regular Wide: 2111g \/ Long: 2106g\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompression Size: -\u003c\/li\u003e\n\u003cli\u003eZip: The Main Left Side zipper continues through the footbox. Zipper plough, double sliders.\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":"Short","offer_id":54964723810677,"sku":"SS-DB-STSSBOAB-9C-SHORT","price":127.0,"currency_code":"GBP","in_stock":true},{"title":"Regular","offer_id":54964723843445,"sku":"SS-DB-STSSBOAB-9C-REG","price":127.0,"currency_code":"GBP","in_stock":true},{"title":"Regular Wide","offer_id":54964723876213,"sku":"SS-DB-STSSBOAB-9C-REGW","price":136.0,"currency_code":"GBP","in_stock":true},{"title":"Long","offer_id":54964723908981,"sku":"SS-DB-STSSBOAB-9C-LONG","price":136.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/2851\/files\/BoabSyntheticSleepingBag-9C-15F_R_ASL043121-052007_PRIMARY.jpg?v=1750864251"}],"url":"https:\/\/rockrun.com\/es\/collections\/sea-to-summit-sleeping-bags\/womens+comfort-temperature-0-minus10+synthetic-sleeping-bags.oembed","provider":"Rock+Run","version":"1.0","type":"link"}