How to Choose Sleeping Bags for Backpacking
Mountain Hardwear Phantom WINDSTOPPER 0F/-18C Sleeping Bag
$1,090.00 – to $1,120.00
Whether you're a climber, a skier or a backpacker, the Mountain Hardwear Phantom WINDSTOPPER 0F/-18C sleeping bag is ideal for high-alpine traverses, severe conditions and long basecamp adventures.
Key Details
Fill
800-fill-power RDS-certified goose down (fluorine free)
Weight
Regular - Left Zip: 3 lbs. 10.3 oz.
Long - Left Zip: 3 lbs. 13.1 oz.
Temperature Rating (F)
0 degrees (F)
- 800-fill-power down insulation for optimal warmth-to-weight ratio and compressibility
- RDS®-certified down insulation
- GORE WINDSTOPPER® fabric is breathable, highly water-resistant, windproof, and ideal for severe conditions
- Expedition mummy cut efficiently adds space at your feet to allow for gear storage in freezing temps
- Lightweight but durable #5 zipper with antisnag for easy entry and exit
- Oversize dual zipper draft tubes prevent cold spots along the zipper
- Shaped draft collar blocks the escape of warm air from inside the bag
- Oversize down-filled face gasket extends into the hood to comfortably block drafts
- Oversize hood allows for full cinch closure in freezing temps
- Contoured footbox follows natural foot position for maximum warmth and comfort
- Vertical sidewall baffles for added warmth and maximum loft
- Glow-in-the-dark, reflective zipper pull
- Nylon compression sack and mesh storage sack included
- Tested Comfort: 12°F; Tested Limit: 0°F; Tested Extreme: -36°F
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 Hardwear 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 | Mountaineering Backpacking |
|---|---|
| Tested Lower Limit | 0 degrees (F) - ISO |
| Tested Comfort | 12 degrees (F) - ISO |
| Temperature Rating (F) | 0 degrees (F) |
| Temperature Rating (C) | -18 degrees (C) |
| Weight | Regular - Left Zip: 3 lbs. 10.3 oz. Long - Left Zip: 3 lbs. 13.1 oz. |
| Ultralight | Yes |
| Shell | GORE WINDSTOPPER 30-denier 2-layer nylon ripstop 57 g/m2 |
| Zipper Location | Left |
| Insulation Type | Down |
| Fill | 800-fill-power RDS-certified goose down (fluorine free) |
| Fill Weight | Regular - Left Zip: 1 lb. 15.6 oz. Long - Left Zip: 2 lbs. 1.7 oz. |
| Sleeping Capacity | 1-person |
| Lining | 15-denier nylon ripstop 34 g/m2 |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | Regular - Left Zip: 72 inches Long - Left Zip: 78 inches |
| Shoulder Girth (in.) | 64 inches |
| Hip Girth (in.) | 58 inches |
| Stuff Sack Size | 9.5 x 17 inches |
| Stuff Sack Volume | 19.7 liters |
| Gender | Unisex |
| Sustainability | Down certified to the Responsible Down Standard (RDS) |
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