- 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
- Colour: black
The Sea to Summit Thermolite Reactor is the ideal sleeping bag liner for colder climates or use as a stand-alone bag in warmer weather. The Reactor is made from lightweight Thermolite fibres which increases sleeping bag performance by up to 8°C with 80g/m².
The Mummy shape liner is machine washable and features a draw cord hood with a mini cord lock.