The newest innovation in sleeping bag liners, this compact Sea to Summit thermolite liner adds up to 12% to the comfort rating of your sleeping bag (1 season) and does this while only weighing 265 grams and packing down to the size of 15 x 7cm.
Perfect for travellers who will be travelling through a variety of climates, the Thermolite reactor liner can be used in conjunction with a lightweight 1-2 season sleeping bag. It can also be used alone in warmer climates.
It also has a HEIQ Fresh bio based treatment to help to keep smells away. Thermolite® Pro is a hollow core fibre that provides extraordinary warmth for its weight and remains extremely breathable. With the stretchy knit fabric that moves with you this liner is perfect for people who like to move when sleeping.