Cosmic Ultra 0

$389.95 - $409.95


800-fill DriDown mummy is warm and lightweight

The Cosmic Ultra 0 is the ultimate in a lightweight mummy. Kelty has taken their top-selling Cosmic Bag and added an 800 fill DriDown version, with all the perks of the original Cosmic. The trapezoidal baffle construction is ideal for retaining heat—and it’s just one of the reasons the Cosmic is still a favorite three-season superstar. You'll 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 or cell phone
• Buttery-soft and durable 20D Nylon shell fabric
• Zipper draft tube with anti-snag zipper design 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

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