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Sea to Summit Reactor Plus Compact Thermolite Mummy Liner

The Sea to Summit Reactor Plus Compact Thermolite Mummy is a sleeping bag liner that increases sleeping bag performance by up to 11°C. This best selling liner is made with dual weight 80g/m² Thermolite fabric, with panels of 110g/m² over the core body areas and foot box. Hollow-core fabric provides amazing warmth to weight ratio and is extremely breathable, while the ergonomic shape of the liner shaves off any excess weight.


  • First dual fabric sleeping bag liner
  • 110g/m² Thermolite panels over core body areas and around the foot box
  • Compact, shorter design is ideal for womens and youths
  • Packs into its own Ultra-Sil stuff sack


  • Packed Size: 183 x 92 cm
  • Weight: 263g

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