Sea To Summit Thermolite Reactor Fleece Liner

Sea To Summit's Reactor Fleece Liner warms up sleeping bags on winter camping trips, and keeps you cozy on its own during warm summer backpacking adventures. Thermolite fleece retains your body heat to add a surprising amount of warmth for how light and compact the liner is. Sea To Summit added a quarter zip for easy entry, and the drawstring hood stays snug overhead to keep your ears cozy.