Mammut Protect Fiber Bag
Best winter sleeping bag for campers prioritizing comfort and undisturbed rest.
This is a sleeping bag designed for those who struggle to rest in the wild. By prioritizing silence and intuitive temperature control over raw weight savings, it creates a cocoon-like environment that actually mimics a bed. You trade a bit of packability for the best night of sleep you'll get outdoors.
$269.00
Who it's for
- Backpackers camping in wet, humid, or snowy climates
- Mountaineers tackling extreme cold and high-altitude expeditions
- Taller or broader adventurers needing extra sleeping space
Who should skip it
- Ultralight hikers prioritizing pack weight efficiency
- Hikers with limited space in their backpacks
- Budget-conscious campers seeking entry-level gear
Performance breakdown
Thermal Efficiency
Robust insulation and cold-bridge protection handle extreme sub-zero temperatures with ease.
Sleep Ergonomics
Anatomical foot box and optimized shape prioritize natural movement for better rest.
Zipper Reliability
Improved YKK hardware and anti-jamming design ensure frustration-free entry and exit.
Noise Reduction
Soft hood materials effectively dampen rustling sounds for a quieter sleep environment.
Climate Regulation
Central two-way zipper offers intuitive ventilation control during fluctuating overnight temperatures.
Sustainability Profile
PFC-free DWR and recycled polyester lining reflect a thoughtful, eco-conscious construction.
Key Specs
Item number
2410-03470
Zipper side
Neutral
Comfort temperature in °F (EN 13537
2012): 14 °F
Comfort temperature limit in °F (EN 13537
2012): -1 °F
Extreme temperature in °F (EN 13537
2012): -40 °F
Fill weight (XL)
1840 g
Total weight without stuff bag (XL)
2460 g
Diameter (compressed) (XL)
31.50 cm
Height (compressed) (XL)
35.00 cm
Packing volume (XL)
27.30 l
Still have a question?
Ask Metto anything about the Mammut Protect Fiber Bag before you decide.