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Sea to Summit Silk Blend Liner (Mummy)

Size: Standard (Max User Height 206cm)

Designed with a mummy shape and constructed of Thermolite-silk fabric, the Sea to Summit Silk Blend Liner is enhanced with comfort stretch panels for a supremely soft and opulent feel. The addition of Thermolite-yarn provides added warmth to accommodate varying temperatures year-round. 

The Thermolite EcoMade has been designed with recycled Thermolite EcoMade fibres made from 100% textile waste, are GRS-certified, and offer the same quality and durable lightweight warmth as their polymer virgin counterparts but with a lower carbon footprint. Also features Thermolite Pro which has been designed with specially engineered hollow fibres, similar to traditional Thermolite materials. However, this version also includes permanent ceramic pigments that effectively absorb infrared rays from the body and then reflect them back to the user.

Tested in accordance with ASTM D1518-2014, This liner will add +8% thermal boost to a 1-season sleeping bag, and +5% to a 3-season sleeping bag.

The draw-cord footbox allows you to regulate your temperature more to your comfort. Keep it sinched up to keep in the warmth, if you get a little too hot, then open it up and let your feet breathe. You can also free your arms without taking the liner off, allowing you to carry out various tasks around camp whilst still keeping warm.

Equipped with HeiQ Fresh FFL, a biocide-free, powerful body odour control technology utilizing a bio-based Amino Sugar Polymer to eliminate any unwanted scents.


  • SUSTAINABILITY: Fabric is made from a blend of 72% recycled and 28% natural yarns.
  • YARN 1: 72% Thermolite
  • YARN 2: 28% natural silk
  • THERMAL BOOST: +8% thermal boost to a 1-season sleeping bag, and +5% to a 3-season sleeping bag.


  • Regular Dimensions: 206 x 80 cm
  • Compact Dimensions: 184 x 80 cm
  • Regular Weight: 154g
  • Compact Weight: 138g
  • Stuff sack included

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