The Sea to Summit Reactor Sleeping Bag Liner is a lightweight, top-selling thermal sleeping bag liner, designed for cold conditions. Its mummy shape and Thermolite Pro fabric utilise advanced infrared technology to reflect body heat and provide exceptional warmth. The comfortable stretch fabric enhances insulation, while the drawcord adds flexibility for a snug fit. Ideal for adding warmth and versatility to your sleeping bag, it ensures premium comfort in chilly environments.Smart design: The technical mummy shape with a drawstring hood ensures a snug fit and enhanced warmth.Low Maintenance: Easy care design allows for hassle-free maintenance and long-lasting use.Compact Storage: It conveniently packs into its own Ultra-Sil stuff sack for compact storage.Odour Control: The FFL biocide-free treatment provides effective odour control without harmful chemicals. Sea to Summit Reactor Sleeping Bag Liner