The Sea To Summit Reactor Midweight liner offers exceptional freedom of movement thanks to its stretch knit construction and integrated armholes, allowing you to sleep in any position without restriction. It fits all sleeping bags and can be easily secured in Sea to Summit models, making it easier to get in and out. Designed to improve thermal performance, it utilises far-infrared (FIR) technology and hollow-core Thermolite Pro fibres, which trap and reflect body heat. It therefore increases the temperature of your sleeping system by up to 6 °C, without adding significant weight or bulk. Easy to care for, it is quick to clean, dries rapidly and stays fresher for longer thanks to its HeiQ Fresh anti-odour treatment. As well as providing enhanced thermal comfort, it effectively protects your sleeping bag by reducing the need for frequent washing, thereby preserving its loft and extending its lifespan.

Features of the Sea To Summit Reactor Midweight sleeping bag liner:

• Dimensions: 193 x 80 cm
• Suitable for users up to 1.85 m tall
• Weight: 350 g
• ThermolitePro® technology.
• Increases the temperature of your sleeping bag
• Extra warmth for cold conditions.