Dynamic Stretch and Freedom for Unrestricted Sleep
The Sea to Summit Reactor Midweight Sleeping Bag Liner is an essential upgrade for any sleep system, providing significant warmth with minimal bulk. It utilizes infrared-absorbing ceramic pigments and hollow-core fibers to trap body heat and reflect it back, adding warmth to your sleeping bag. Its stretch-knit construction and ergonomic shape, complete with a fitted hood and shoulder openings, allow for natural movement and comfort whether you’re a side sleeper or back sleeper. Beyond temperature regulation, the liner acts as a protective barrier, reducing the need to wash your sleeping bag and preserving its loft. Compact and quick-drying, the Reactor Midweight is a durable, odor-resistant solution for backpackers and cycle tourists who need reliable thermal performance on the trail.
