Kelty Cosmic Down Mummy Sleeping Bag Polyester

Product Family #: 2660299679
$129.95 - $269.95

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Product Information


  • Box baffle construction
  • Efficient, form-fitting hood
  • Full draft collar
  • 58 inch dual-slider locking zipper
  • Zipper draft tube with anti-snag design


With a bright shell design, this bag alludes the feeling of warmth. Perfect for a winter backpacking trip, the Kelty Cosmic Down Sleeping Bag retains warmth exceptionally with the insulated draft tube, hood, and collar baffles.   This mummy sleeping bag has a 58 inch dual-slider anti-snag locking zipper and an efficient form-fitting hood.  With different options of weight and temperature rating, there is sure to a Cosmic sleeping bag to fit your needs. 


You can use the 40 Degree option for those warmer weather overnight trips with the lightweight, packable design; ideal for summertime.  The 20 Degree Cosmic is great for when the seasons are changing and you need a little bit more warmth.  For when it gets cold and you need to keep all of your body heat in, the 0 Degree Cosmic will keep you warm.  The Cosmic sleeping bag is a great choice for your next camping trip.


Technical Information:


  • Regular: 78"
  • Long: 84"

Sleeping Bag Shape: Mummy


  • Regular: Up to 6 ft.
  • Long: Up to 6 ft. 6 in.

Fill Weight:

  • 0 Degree Regular: 39 oz.
  • 0 Degree Long: 42 oz.
  • 20 Degree Regular: 21 oz.
  • 20 Degree Long: 25 oz.
  • 40 Degree Regular: 12 oz.
  • 40 Degree Long: 13 oz.

Total Weight:

  • 0 Degree Regular: 3 lbs. 12 oz.
  • 0 Degree Long: 3 lbs. 15 oz.
  • 20 Degree Regular: 2 lbs. 11 oz.
  • 20 Degree Long: 3 lbs.
  • 40 Degree Regular: 1 lb. 13 oz.
  • 40 Degree Long: 1 lb. 15 oz.

Stuff Sack Included: Yes

Stuff Sack Size:

  • 0 Degree Regular: 9" x 17"
  • 0 Degree Long: 9" x 18"
  • 20 Degree Regular: 8" x 14"
  • 20 Degree Long: 8" x 14"
  • 40 Degree Regular: 7" x 12"
  • 40 Degree Long: 7" x 12"

Outer Material: 50D Polyester Taffeta

Inner Material: 50D Polyester Taffeta

Insulation: 550 Fill-power down

Temperature Rating:

  • 0 Degree: 0° / -18°C 
  • 20 Degree: 20° / -7°C 
  • 40 Degree: 40° / 4°C


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