Sea to Summit Thermolite Reactor

Increase the comfort rating of your sleeping bag by 8°C with this fantastic thermolite liner from Sea to Summit! Thermolite is a lightweight fabric with far superior insulating properties to cotton or silk counterparts, while remaining lightweight as well as machine washable and odour resistant. Team with a sleeping bag in cooler climates or use alone in warm climates as a lighter alternative to a 1/2 season sleeping bag!