- 650-fill-power down insulation delivers impressive warmth for its weight, and is one of the lightest, warmest and most compressible insulations available
- Full-length 2-way zipper is backed its entire length by a draft tube that keeps the warmth in and the cold out; comes with a glow-in-the-dark zipper pull
- Ripstop shell with Durable Water Repellent finish sheds water; nylon blend lining is soft and breathable
- Drawcord collar cinches around the face to prevent warm air from escaping and cold air from entering
- Small chest pocket keeps a few essentials—headlamp, watch, glasses—right at hand and easy to find even in the dark
- The Lafuma Warm'n Light 800 30°F sleeping bag comes with a compression stuff sack and storage bag
Imported.
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.
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