The Thermolite® Reactor increases sleeping bag performance by up to 8°C. It is ideal as part of a cold climate sleep system, or as a standalone bag in warm weather. The Thermolite® Reactor is made from the lightest of Thermolite® fibres.
- 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