The updated REI Co-op Magma 15 sleeping bag ensures comfort and toasty warmth without adding extra weight. An extended range of sizes delivers your best fit for better sleep.
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- Inclusive sizing lets you find your best fit based on body shape and sleeping preferences
- Light-but-not-tight performance fit contours to your body shape; it's fitted throughout to reduce weight and increase thermal efficiency
- Recycled downproof shell, water-resistant 850-fill-power goose down and supple recycled lining combine to provide cozy warmth and a supersoft feel
- Nonfluorinated durable water repellent (DWR) finish on the shell helps moisture bead up on the surface
- Hood's contoured shape fits securely around your head and cinches up for maximum warmth; 2 differentiated drawcords make it easy to adjust while you're zipped in the bag
- Variable baffle spacing locates and stabilizes the down fill, delivering thermal efficiency and reducing weight
- Zipper path wraps around the front of your chest so you can more easily zip and unzip the bag; zipper cover and internal antisnag strip means frustration-free zipping
- Trapezoidal footbox has room to move your feet while reducing excess space to increase warmth and decrease weight
- Insulated yoke fills the neck and shoulder gap to prevent heat loss
- Interior stash pocket lets you keep personal items close and easy to access
- Includes a stuff sack for packing and a roomy mesh sack for breathable storage
- Hand-wash or machine wash warm, gentle cycle in front-load washer only; do not bleach; rinse thoroughly; do not wring; air dry or tumble dry low; do not iron or dry clean
- REI is Climate Neutral Certified; as we work to actively reduce our footprint, we measure annual carbon emissions and purchase an equivalent amount of verified carbon credits
- Contains materials that meet the bluesign® criteria
Imported.
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. For REI Co-op brand nongendered sleeping bags, we provide an overall temperature rating that falls between the Comfort and Lower Limit ratings.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 9 degrees (F) - ISO |
| Tested Comfort | 21 degrees (F) - ISO |
| Temperature Rating (F) | 15 degrees (F) |
| Temperature Rating (C) | -9 degrees (C) |
| Weight | Short Narrow: 2 lbs. Short: 2 lbs. 1.9 oz. Short Wide: 2 lbs. 4.4 oz. Medium: 2 lbs. 3.6 oz. Medium Wide: 2 lbs. 8 oz. Long: 2 lbs. 8.5 oz. Long Wide: 2 lbs. 11.3 oz. |
| Shell | Recycled ripstop nylon (bluesign approved) |
| Zipper Location | Left |
| Insulation Type | Down |
| Water-Resistant Down | Yes |
| Fill | 850-fill-power water-resistant goose down (bluesign approved) |
| Fill Weight | Short Narrow: 1 lb. 3.5 oz. Short: 1 lb. 4.9 oz. Short Wide: 1 lb. 6.7 oz. Medium: 1 lb. 7.3 oz. Medium Wide: 1 lb. 9.1 oz. Long: 1 lb. 9.4 oz. Long Wide: 1 lb. 11.3 oz. |
| Sleeping Capacity | 1-person |
| Lining | Recycled 15-denier ripstop nylon (bluesign approved) |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | Short Narrow: 65 inches Short: 65 inches Short Wide: 65 inches Medium: 71 inches Medium Wide: 71 inches Long: 77 inches Long Wide: 77 inches |
| Shoulder Girth (in.) | Short Narrow: 54 inches Short: 61.5 inches Short Wide: 69 inches Medium: 62.5 inches Medium Wide: 70 inches Long: 63.5 inches Long Wide: 71 inches |
| Hip Girth (in.) | Short Narrow: 45.5 inches Short: 53 inches Short Wide: 61.5 inches Medium: 54 inches Medium Wide: 62.5 inches Long: 55 inches Long Wide: 63.5 inches |
| Stuff Sack Size | Short Narrow: 7.8 x 16.5 inches Short: 7.8 x 16.5 inches Short Wide: 7.8 x 16.5 inches Medium: 7.8 x 16.5 inches Medium Wide: 7.8 x 16.5 inches Long: 7.8 x 16.5 inches Long Wide: 8.2 x 18.5 inches |
| Stuff Sack Volume | Short Narrow: 10 liters Short: 10 liters Short Wide: 10 liters Medium: 10 liters Medium Wide: 10 liters Long: 10 liters Long Wide: 12.6 liters |
| Compressed Volume | Short Narrow: 6 liters Short: 6.5 liters Short Wide: 7.7 liters Medium: 8 liters Medium Wide: 8.6 liters Long: 8.2 liters Long Wide: 9.4 liters |
| Gender | Unisex |
| Sustainability | Contains recycled materials Contains materials that meet the bluesign® criteria From a Climate Neutral Certified brand |
Hip Girth The circumference at the widest point of your hips. | |||
|---|---|---|---|
| 39-45 | 32-39 | 45-52 | |
| Height | |||
| 4'11'-5'5'' | Short | Short Narrow | Short Wide |
| 5'5''-5'11'' | Medium | Medium Narrow | Medium Wide |
| 5'11''-6'5'' | Long | Long Narrow | Long Wide |
Sizing Notes
Measurements are stated in inches unless otherwise indicated. For Hip measurement, measure around your body at the widest point of your hip. If right at the edge of the measurements listed, size up or down based on your upper body size or how you prefer your sleeping bag to fit. A closer fit will provide better insulation, and a looser fit will allow for a bit more room. It’s important to not have too much room for proper insulation.