Use it for below-zero conditions, to add warmth without a lot of weight. It's best to wear a light layer and light socks inside, so you don't get wet with water vapour.
- Waterproof, non-breathable silicone-impregnated ripstop nylon keeps warm air next to your skin, and reduces moisture build-up in your bag
- Mummy design with hood
- Drawstring on hood
- Mesh stuff sack attached at foot box
- No zipper