How to Choose Sleeping Bags for Backpacking
Mountain Equipment Nova II Sleeping Bag
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Light, spacious and comfortable, the Mountain Equipment Nova II sleeping bag retains the low weight and compressibility required for backpacking while using the construction to maximize warmth.
Shop similar productsKey Details
Fill
Polarloft
Weight
2 lbs. 8 oz.
Temperature Rating (F)
27 degrees (F)
- Polarloft® synthetic insulation helps maintain warmth even while wet
- HELIUM™ 20-denier outer shell is light and highly breathable
- Keystone shingle construction offers the greatest warmth for the minimum weight
- Offset layer construction underneath
- Mountain fit is both spacious and thermally efficient
- Anatomically shaped hood and footbox
- Integrated collar with Lode Lock™ closure
- Full-length zip baffle
- Includes a lightweight compression sack
- Closeout
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 Mountain Equipment 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 | 27 degrees (F) - EN |
| Tested Comfort | 37 degrees (F) - EN |
| Temperature Rating (F) | 27 degrees (F) |
| Temperature Rating (C) | -3 degrees (C) |
| Weight | 2 lbs. 8 oz. |
| Shell | HELIUM 20, 42 g/m2, 20-denier nylon |
| Insulation Type | Synthetic |
| Fill | Polarloft |
| Sleeping Capacity | 1-person |
| Lining | Supersoft 30, 49 g/m2, 30-denier nylon |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | 73 inches |
| Shoulder Girth (in.) | 62 inches |
| Hip Girth (in.) | 54 inches |
| Stuff Sack Size | 9 x 7 x 11 inches |
| Stuff Sack Volume | 10.5 liters |
| Gender | Unisex |
