A close look at two sleeping bags buyers cross-shop. On the data the Magma 15 is the stronger all-round pick, and the question is whether the Badger MF still fits your budget or priorities.
| REI Co-op Magma 15 | Western Mountaineering Badger MF | |
|---|---|---|
| GearScore | 85✓ | 64 |
| Comfort rating | 21 °F✓ | 25 °F |
| Weight | 2 lb 3.6 oz✓ | 2 lb 6.0 oz |
| Warmth-to-weight | 4.9 /100g✓ | 4.2 /100g |
| Packed size | 8.0 L | n/s |
| Fill power | 850 FP | 850 FP |
| Price | $399 | n/s |
| Fill | Down | Down |
| Style | Bag | Bag |
| Shape | Mummy | Mummy |
Highlighted cells mark the better spec: Magma 15 in blue, Badger MF in amber. A blank spec is never counted as a win. A lower comfort rating in °F means a warmer bag, so the warmer bag takes that row. GearScore is the overall rating (0 to 100); re-weight it on the full bag comparison. Prices are current MSRP.
Put the REI Co-op Magma 15 next to the Western Mountaineering Badger MF and the trade-offs are clear. The Magma 15 is the stronger pick on most of the specs that matter, while the Badger MF makes its case on price.
The Magma 15 is warmer (rated 21°F vs 25°F), 2 oz lighter, and stronger on warmth-to-weight. On the default GearScore the Magma 15 leads 85 to 64.
Pick the Magma 15 if you care most about warmth and low weight, which makes it the better call for colder nights and shoulder-season trips. Pick the Badger MF if you would rather save the difference.
The REI Co-op Magma 15. It is warmer (rated 21°F vs 25°F) than the Badger MF.
The REI Co-op Magma 15. It is 2 oz lighter than the Badger MF.
The REI Co-op Magma 15, 85 to 64 on the default algorithm. You can re-weight the factors to match your trip.
The Magma 15 is the stronger all-round pick here. Choose the Badger MF if it is the better value for you.