The North Face Blue Kazoo 20F Sleeping Bag

Stay cozy warm and travel light with this The North Face 20°F sleeping bag. It packs down small and weighs less than 2 lbs., thanks to the premium, recycled shell fabric and high-fill-power down.

Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.

Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.

• Highly compressible, recycled 700-fill-power down retains loft and warmth season after season
• Fully insulated hood with an insulated cinch collar is designed to seal out chilly breezes to help keep your head warm
• Trapezoidal side-chamber baffles reduce cold spots and retain loft
• Durable YKK 2/3-length side zipper makes it easy to get in and out of the bag and saves weight
• Shockcords on the back of the bag attach to a sleeping pad so the pad will stay in place while you sleep
• Compression stuff sack included