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$239.99
Estimated delivery time:
3-5 days.
Free shipping:
On all orders over $50.
The Kelty Cosmic Ultra 20 is the ultimate in a lightweight mummy. We’ve taken our top-selling Cosmic Bag and added an 800 fill DriDown version, with all the perks too. The new trapezoidal baffle construction improves is ideal for retaining heat—and it’s just one of the reasons Cosmic is still our favorite three-season superstar. We also love the natural-fit foot box for happier feet, and a PFC-free water-repellent coating for a healthier environment.
– Innovative trapezoidal baffle construction = 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 or actual… stash
– Buttery-soft and durable 20D Nylon shell and liner
– Zipper draft tube keeps warm air in while anti-snag zipper makes it easy to get in and out
– Natural fit spacious footbox = more room to wiggle your toes
– Comes with stuff sack for quick departures
Specifications:
Liner: 20D 400T Nylon
Shell: 20D 400T Nylon
Fill: 800DP Dridown
Regular
Temperature Rating: 20.0°F / -7.0°C
ISO Comfort Rating: 31.0°F / -1.0°C
ISO Limit Rating: 20.0°F / -7.0°C
ISO Extreme Rating: -12.0°F / -24.0°C
Bag Shape: Mummy
Weight: 2.35 lbs / 1.06 kg
Fill Weight: 15.17 oz / 430.0 g
Fits To: 72.05" / 183.0 cm
Length: 77.95" / 198.0 cm
Shoulder Circumference: 62.2" / 158.0 cm
Hip Circumference: 57.87" / 147.0 cm
Foot Circumference: 40.16" / 102.0 cm
Stuff Sack Size: 8 x 13 in / 20 x 33 cm
Long
Temperature Rating: 20.0°F / -7.0°C
ISO Comfort Rating: 31.0°F / -1.0°C
ISO Limit Rating: 20.0°F / -7.0°C
ISO Extreme Rating: -12.0°F / -24.0°C
Bag Shape: Mummy
Weight: 2.51 lbs / 1.14 kg
Fill Weight: 17.43 oz / 494.0 g
Fits To: 77.95" / 198.0 cm
Length: 83.86" / 213.0 cm
Shoulder Circumference: 64.17" / 163.0 cm
Hip Circumference: 59.84" / 152.0 cm
Foot Circumference: 41.73" / 106.0 cm
Stuff Sack Size: 8 x 14 in / 20 x 36 cm
Orders ship within 1–3 business days. We offer free standard U.S. shipping on orders over $50.
Returns accepted within 14 days of delivery for unused items in original packaging. Email us to request a return or refund.
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Disclaimer: All products on this website are intended for personal, recreational, and outdoor use. Performance may vary depending on conditions, skill level, and proper handling. WecoTrail provides quality outdoor equipment, but it is not a substitute for professional training, safety guidance, or certified instruction. Always follow manufacturer directions, use gear responsibly, and consult a qualified expert when engaging in activities that involve risk. Outdoor adventures are undertaken at your own responsibility and discretion.
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WecoTrail.com © Copyright 2022–2025 WecoTrail. All rights reserved.
IMPORTANT: WecoTrail is not affiliated with, nor responsible for, any third-party websites or resellers not explicitly operating under the WecoTrail.com domain.