Western Mountaineering Puma Super MF Sleeping Bag
Best ultralight warmth for extreme cold weather adventurers.
Engineered for the most unforgiving winter environments, this bag prioritizes maximum thermal retention without unnecessary bulk. It balances a high-loft down fill with a protective, breathable shell to keep you warm when temperatures plummet well below zero.
$1130.00
at
Backcountry
Who it's for
- Winter mountaineers and arctic explorers
- Ultralight backpackers and high-altitude climbers
- Serious outdoor enthusiasts seeking long-term gear investment
Who should skip it
- Budget-conscious adventurers and casual campers
- Campers in temperate climates or shoulder seasons
- New outdoor enthusiasts unfamiliar with down product maintenance
Performance breakdown
Thermal efficiency
850-fill down creates a formidable barrier against sub-zero alpine temperatures.
Weight-to-warmth ratio
Exceptional loft provides maximum heat retention without adding unnecessary pack weight.
Moisture management
Breathable shell effectively sheds condensation while protecting the critical down insulation.
Draft protection
Interlocking tubes and a robust collar seal out every bit of cold.
Layering capacity
Generous shoulder girth accommodates bulky expedition gear without restricting movement.
Expedition durability
Rugged MicroLite XP shell withstands the harsh realities of high-altitude camping.
Key Specs
Material
MicroLite XP (polyester microfiber) shell, nylon lining
Insulation
850-fill down
Waterproofing
DWR treatment
Shape
Mummy
Zipper
Full-length
Temperature Rating
-25 degrees Fahrenheit
Fill Power
850 cubic inches per ounce
Weight
3.25 lbs (5ft 6in model)
Max User Height
78 inches
Has Draft Collar
Yes
Know before you buy
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