The Mountain Hardwear Bozeman 15F/-9C is a three-season synthetic bag with Thermal.Q Recycled insulation, EN/ISO 23537 tested to -3°C comfort and -9°C limit. A shingle-baffle construction for the 1489g fill helps eliminate the cold spots that typically plague seams in cheaper synthetic bags, and both the recycled insulation and 75D polyester shell/liner prioritize durability and sustainability over minimizing weight.
At 2048g total and 13.8L packed, the Bozeman 15F is a considerably heavier three-season option — the comparably rated down Bishop Pass 15F weighs 1060g, nearly a kilogram less. Synthetic fill doesn't mind moisture and is cheaper to produce and maintain, though, so the Bozeman 15F makes more sense for car camping, cabin trips, or as a reliable backup in wet conditions than for weight-conscious backpacking. An internal length of 218cm and a unisex cut to 183cm provide generous room, with a two-way zipper and coupleability rounding out the feature set.
Specifications
Comfort Temperature
-3 °C
Limit Temperature
-9 °C
Extreme Temperature
-28 °C
Temperature Rating Standard
EN/ISO 23537 tested
Season Rating
3-season
Total Weight
2048 g (4.52 lb)
Fill Weight
1489 g (3.28 lb)
Internal Length
218 cm (7.2 ft)
Packed Size ( Length x Diameter )
46 x 25 (1.5 x 9.8 ft)
Packed Volume
13.8 l (3.65 gal)
Insulation Type
Synthetic
Synthetic Insulation Name
Thermal.Q Recycled
Shape
Mummy
Baffle Construction
Shingle/Shingled
Zipper Side
Left
Zipper Length
Full length
Two-Way Zipper
✓
Coupleable/Zip Together
✓
Shell Fabric
75D Plain Weave Polyester
Liner Fabric
75D Plain Weave Polyester
Draft Collar
✓
Draft Tube
✓
Stuff Sack Included
✓
Size Category
Regular
Maximum User Height
183 cm (6.0 ft)
Gender-Specific Fit
Unisex
Recycled Materials
✓
Warmth-to-Weight Ratio f(x)
4.4 °C/kg
Fill Efficiency f(x)
0.6 °C/100g
Weight per Degree f(x)
227.6 g/°C
Bag Type
Mummy sleeping bag
Where to buy
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Category context Sleeping Bags (417 products)
Weight
Expedition weight· mainstream zone 819–1420 g· ranked 391 of 418