Home Camping Sleeping Bags Sleeping Bag Liners Back to top Sleeping Bag Liners Sea to Summit Coolmax Adaptor Mummy Liner Provides warmth in cooler weather and moisture-wicking in hotter. Also keeps sleeping bags nice and clean. $38.77 Currently out of stock Sea to Summit Thermolite Reactor Extreme Mummy Liner S2S' most insulating sleeping bag liner, increasing warmth by up to 15°C. Basically a lightweight sleeping bag. $49.87 Currently out of stock Sea to Summit Thermolite Reactor Mummy Liner S2S' best-selling sleeping bag liner, made from synthetic Thermolite insulation which adds up to 8°C of warmth in your bag. $41.04 Currently out of stock Back to top
Sea to Summit Coolmax Adaptor Mummy Liner Provides warmth in cooler weather and moisture-wicking in hotter. Also keeps sleeping bags nice and clean. $38.77 Currently out of stock
Sea to Summit Thermolite Reactor Extreme Mummy Liner S2S' most insulating sleeping bag liner, increasing warmth by up to 15°C. Basically a lightweight sleeping bag. $49.87 Currently out of stock
Sea to Summit Thermolite Reactor Mummy Liner S2S' best-selling sleeping bag liner, made from synthetic Thermolite insulation which adds up to 8°C of warmth in your bag. $41.04 Currently out of stock
