The Cosmic Ultra 0º is the ultimate in a lightweight mummy bag. The folks at Kelty® took their top-selling Cosmic Bag and added an 800 fill DriDown™ version with all the perks.
Trapezoidal baffle construction is ideal for retaining heat, the natural-fit foot box makes feet happy, and there’s a PFC-free water-repellent coating for a healthier environment.
- Buttery-soft and durable 20D nylon shell and liner fabric
- Innovative trapezoidal baffle construction provides thermal efficiency
- Premium lightweight 800 fill DriDown
- Environmental and health-friendly C0 and PFC-free DWR fabrics
- Zippered internal stash pocket for headlamp, cell phone and more
- Zipper draft tube with anti-snag zipper design makes it easy to get in and out
- Natural fit spacious footbox provides more toe wiggling room
- Right hand zipper
- Stuff sack included
- ISO Comfort rating: 18°F / -8°C
- ISO Limit rating: 5°F / -15°C
- ISO Extreme rating: -33°F / -36°C
Regular:
- Fits to 72.05″
- Length: 77.95″
- Shoulder circumference: 62.2″
- Hip circumference: 57.87″
- Foot circumference: 40.16″
- Stuff sack dimensions: 10″ x 19″
- Fill weight: 2 lbs. 3.27 oz.
Long:
- Fits to 77.95″
- Length: 83.86″
- Shoulder circumference: 64.17″
- Hip circumference: 59.84″
- Foot circumference: 42.13″
- Stuff sack dimensions: 10″ x 20″
- Fill weight: 2 lbs. 6.73 oz.

















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