COSMIC ULTRA 0

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The Kelty Cosmic Ultra 0 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 trape zoidal 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. FEATURES 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 MATERIALS Liner: 20D 400T Nylon Shell: 20D 400T Nylon Fill: 800DP Dridown SPECS Regular Temperature Rating: 0.0°F / -18.0°C ISO Comfort Rating: 18.0°F / -8.0°C ISO Limit Rating: 5.0°F / -15.0°C ISO Extreme Rating: -33.0°F / -36.0°C Bag Shape: Mummy Weight: 4.04 lbs / 1.83 kg Fill Weight: 35.27 oz / 1000.0 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: 10 x 19 in / 25 x 48 cm Long Temperature Rating: 0.0°F / -18.0°C ISO Comfort Rating: 18.0°F / -8.0°C ISO Limit Rating: 5.0°F / -15.0°C ISO Extreme Rating: -33.0°F / -36.0°C Bag Shape: Mummy Weight: 4.34 lbs / 1.97 kg Fill Weight: 38.73 oz / 1098.0 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: 42.13" / 107.0 cm Stuff Sack Size: 10 x 20 in / 25 x 50 cm Show more