This liner adds about 8 degrees of warmth to a sleeping bag. It's made of Thermolite, a hollow core fiber that is lighter and more packable than fleece. It's a mummy shape with a foot box and can be used in your sleeping bag or on its own. There is a draw cord in the hood to cinch it up around your head on cold nights. Packs into its own sil nylon stuff sack.

Size: 84" x 36"
Weight:8.7 oz /248 g

Care: Machine wash and air dry, avoid fabric softener/dryer sheets.