Sea To Summit Reactor Thermolite Mummy Liner (Standard)

The Reactor Liner uses new infrared technology paired with comfortable stretch fabric to offer extra warmth, versatility, and increased insulation.

Designed to provide increased comfort and warmth, the Sea To Summit Reactor Thermolite Mummy Liner is the perfect addition to your sleeping bag. Featuring Thermolite Pro technology, the liner provides amazing warmth for its weight and remains extremely breathable. Stretchy, Thermolite Pro fabric is incredibly comfortable and utilises Infrared Technology to increase warmth without adding weight providing a thermal boost of 12% when used in a 1 season sleeping and 6% in a 3 season bag. This lightweight technology also aids in the packing of the liner, helping you stow it away with ease compared to fleece. A HEIQ Fresh bio-based treatment has been used for added odour control, and the technical shape ensures comfort and performance. The mummy shape has been designed to fit the body with ease, with an adjustable drawstring foot area and a hood for extra coverage. The liner also packs into its own Ultra-Sil stuff sack for maximum convenience.