Mammut Comfort Fiber Bag
Best eco-conscious synthetic sleeping bag for chilly, relaxed camping trips.
This synthetic bag prioritizes restorative sleep with a thoughtful, waste-reducing design that feels as good as it performs. While it lacks the extreme packability of high-end down, the versatile blanket mode and eco-conscious construction make it a reliable, guilt-free companion for casual camping trips where comfort is the priority.
$180.00
at
Mammut
Who it's for
- Hikers camping in humid or unpredictable climates
- Restless sleepers needing extra room to move
- Outdoor enthusiasts prioritizing low-maintenance gear
Who should skip it
- Budget-conscious shoppers seeking maximum value
- Ultralight backpackers counting every ounce and inch
- Long-term campers needing multi-year insulation performance
Performance breakdown
Thermal Efficiency
Draft collars and insulated baffles effectively lock in essential body heat.
Sustainability Impact
Recycled materials and waste-reducing patterns set a high industry standard.
Versatility
Central zipper allows for blanket mode during warmer, relaxed camping trips.
Zipper Reliability
Upgraded YKK hardware minimizes frustrating snags during late-night exits.
Ergonomic Comfort
Anatomical foot box provides room to move without adding unnecessary bulk.
Packability
Synthetic fill offers decent compression for casual, car-camping adventures.
Key Specs
Comfort temperature (EN 13537
2012): 32 °F
Comfort temperature limit (EN 13537
2012): 23 °F
Extreme temperature (EN 13537
2012): -9 °F
Zipper side
Neutral
Fill weight (Size L)
500 g
Total weight without stuff bag (Size L)
1425 g
Maximum body size (Size L)
195 cm
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