The Reactor is made from 80g/m² Thermolite®—the lightest weight Thermolite® fabric available. Thermolite® is a hollow core fibre that provides amazing warmth for its weight and remains extremely breathable. The Reactor adds up to 8°C of warmth to a sleeping bag or can be used alone as a warm weather bag. Our bestselling sleeping bag liner!
- Adds warmth to a sleeping bag
- Mummy shape with a box foot
- Draw cord hood with mini cord lock
- Packs into its own UltraSil® stuff sack
- Lighter in weight, more packable than fleece
- Machine washable