The Sea to Summit Reactor Extreme Sleeping Bag Liner is designed to enhance your sleeping bag's warmth in cold conditions. Its hollow core fibers and knitted structure trap insulating air, providing a substantial thermal boost.
This liner is versatile, working seamlessly with any sleeping bag shape due to its soft, stretch-knit material. It features shoulder and footbox openings to adapt to varying climate needs. Treated with HeiQ Fresh FFL, it effectively controls odor without harmful chemicals.
