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Kelty Cosmic 0ºF Down Sleeping Bag

Cosmic 0ºF Down Sleeping Bag

Regular price $169.00 USD
Regular price $275.00 USD Sale price $169.00 USD
Sale Sold out

Trapezoidal baffling sounds a lot like geometry class, but don't worry, we won't test ya. Kelty's Cosmic 0ºF Down Sleeping Bag employs this unique baffing style for better thermal efficiency in its lightweight and cozy 550 fill down. A three-season superstar, the Cosmic also boasts an internal zippered pocket to stash your goodies, a spacious footbox so you can wiggle your little piggies, and an environmentally-friendly CO- and PFC-free DWR treatment to keep the bag from wetting out when the skies get grumpy.



  • Three-season down sleeping bag 
  • Innovative trapezoidal baffle construction leads to better thermal efficiency
  • Lightweight and warm 550 fill down
  • Environmental and health-friendly CO- and PFC-free DWR fabrics
  • Zippered internal stash pocket
  • Buttery-soft and durable 20D nylon shell fabric
  • Zipper draft tube with anti-snag zipper
  • Dual slider for ventilation with locking zippers
  • Natural fit spacious footbox give you more room to wiggle your toes
  • Stuff sack included
 Shape  Mummy
 ISO Limit Temp Rating  4°F / -16°C

 Reg - 6' / 183 cm

 Long - 6'6" in / 198 cm

 Fill Weight

 Reg - 39.51 oz / 1120 g

 Long - 41.55 oz / 1178 g

 Fill Type  550FP Duck Down
 Zipper Location  Right

 Reg - 4.34 lbs / 1.97 kg

 Long - 4.63 / 2.1 kg

 Lining Material  50D 300T Polyester
 Shell Material  20D 400T Nylon



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