The Sea to Summit Reactor Sleeping Bag Liner is made from Thermolite®, a hollow core fiber that provides extraordinary warmth for its weight and remains extremely breathable. This liner adds up to 14º F / 8º C of warmth to a sleeping bag or, used alone, is the ideal warm weather bag.

NOTE: The degrees' addition are referential only, this might vary due to different factors such as insulation type of your sleeping bag.

Details:

• Lighter weight, more packable than fleece.
• Adds up to 14º F / 8º C of warmth to a sleeping bag.
• Mummy shape with a box foot.
• Draw cord hood with mini cord lock.
• Packs into its own 3 in x 5 in Ultra-Sil™ stuff sack.
• Easy to wash and helps to keep your down bag cleaner for longer.