How to Choose Sleeping Bags for Backpacking
The North Face Blue Kazoo Sleeping Bag
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With warm 650-fill-power goose down insulation, the popular Blue Kazoo +15°F bag from The North Face is suitable for a wide range of mountain conditions.
Shop similar productsKey Details
Fill
650-fill goose down
Temperature Rating (F)
15 degrees (F)
- Trapezoidal baffle construction evenly distributes 650-fill-power goose down and keeps it from shifting from side to side, preventing cold spots
- Ripstop nylon shell is water-resistant, highly breathable and downproof
- Silky nylon taffeta lining is soft against the skin and tightly woven for durability
- High-pressure areas (head, torso and feet) feature Climashield™ Prism insulation synthetic pads instead of down for extra support and increased thermal efficiency
- Vaulted footbox allows natural foot movement and eliminates excess lateral space, increasing thermal efficiency to keep your feet warm and comfortable
- Sculpted hood features adjustable drawcords allowing easy hood and neck refinements
- Forehead comfort tube and full-length draft tube backing the zipper minimize heat loss
- Easy-grab, glow-in-the-dark zipper pulls and stiffened zipper columns provide smooth, snag-free zipper operation
- Internal draft tube pocket stores small items to keep them warm (headlamp batteries) and within easy reach
- Comes with a lightweight compression stuff sack and nylon mesh storage sack
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.
View all The North Face Backpacking Sleeping BagsEach 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.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 16 degrees (F) - EN |
| Tested Comfort | 28 degrees (F) - EN |
| Temperature Rating (F) | 15 degrees (F) |
| Temperature Rating (C) | -9 degrees Celsius |
| Shell | Ripstop nylon |
| Insulation Type | Down |
| Fill | 650-fill goose down |
| Lining | Nylon taffeta |
| Sleeping Bag Shape | Mummy |
| Stuff Sack Size | 8 x 17 inches |
| Stuff Sack Volume | 14 liter |
| Gender | Unisex |
