The ''Reactor'' is made from Thermolite®, a hollow core fiber that provides extraordinary warmth for its weight and remains extremely breathable. Adds up to 15 degrees F / 8 degrees C of warmth to a sleeping bag or, used alone, is the ideal warm weather bag.
Features • Lighter weight, more packable than fleece • Adds up to 15 degrees F / 8 degrees C of warmth to a sleeping bag • Mummy shape with a box foot • Draw cord hood with mini cord lock • Color of liner is black • Weighs just 8.7oz • Packs into its own 3'' x 5'' sil nylon stuff sack