A good nights rest sets the foundation for being able to reach your peak performance the following day, and thats why youll appreciate Alps Mountaineerings Zenith 0F Mummy Sleeping Bag on your backcountry adventures. RDS-certified 600-fill-power waterproof down keeps you warm down to 0F, while an integrated hood seals in warmth and teams with an insulated chest and zipper baffle to keep drafts from forcing their way in. Tough polyester-ripstop shell withstands rough-and-tumble expeditions, while a soft polyester lining is suitable for restful sleep. Compression stuff sack saves space in your pack. No. 8 separating zipper. Imported. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Mummy Sleeping Bags.