Sea To Summit - Reactor Lightweight Liner

The Reactor Lightweight Liner enhances sleep system performance with advanced ThermoliteA(R) Pro fabric, which uses infrared-absorbing ceramic pigments and hollow-core fibers to trap body heat. This innovative technology reflects warmth back to your body while maintaining breathability, making it an ideal companion for three-season camping and backpacking. Weighs just ounces, packs down small, and adds significant warmth without bulk. Perfect for extending the comfort range of your sleeping bag or using solo in mild conditions.