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KELTY Cosmic Ultra 20



The Kelty Cosmic Ultra 20 is the ultimate in a lightweight mummy. They’ve taken their 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 a favorite three-season superstar. You will 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

Additional information




35430921LR, 35430921RR


Regular Right Zip


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