Kelty Cosmic Down 40° Mummy Sleeping Bag


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Size: Regular
Color: Castle Rock
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Remember the trapezoid from 10th-grade geometry? Turns out, this funky shape provides the ideal solution for helping sleeping-bag baffles retain heat. The Kelty® Cosmic Down 40° Mummy Sleeping Bag improves on past designs to provide a 3-season superstar. Lightweight, warm responsibly-sourced 550-fill-power down in the innovative trapezoidal baffle construction delivers maximum thermal efficiency, keeping you warm down to 40°F. A durable water-repellent (DWR) finish ensure this Kelty mummy bag maximizes your protection from the elements. A zip-close internal stash pocket houses your headlamp, cell phone, and other essentials. The soft, smooth, durable 20-denier 100% nylon shell holds up again and again, and the natural-fit, spacious footbox provides more room to wiggle your toes. 100% polyester liner. Includes stuff sack for quick departures. Imported.
Manufacturer model #: 35414821RR.

  • Innovative trapezoidal baffle construction
  • Responsibly-sourced 550-fill-power down
  • DWR finish protects against dew and condensation
  • Zip-close internal stash pocket
  • Durable 20-denier nylon shell with polyester lining
  • Dual slider for ventilation with locking zippers
  • Natural-fit, spacious footbox
  • Includes stuff sack


  • 78"L x 62"W
  • Footobx: 40"W
  • Stuff sack: 10"L x 7"W
  • Weight: 1.7 lbs.
  • Fits up to 6'0''
Web ID: 101235876