Make & Model - Kelty Cosmic 0
Listed Temperature Rating - 0 degrees F / -18 degrees C
EN Lower Limit Rating - 5 degrees F / -15 degrees C
Materials - Insulation: 600-fill-power DriDown; Shell: 50-denier ripstop polyester; Liner: 50-denier polyester taffeta
Dimensions (unfolded) - Regular: 72 (length) by 62 (circumference) inches; Long: 78 (length) by 64 (circumference) inches
Dimensions (packed) - Regular: 9 by 17 inches; Long: 9 by 18 inches
Weight - Regular: 4 pounds, 2 ounces Long: 4 pounds, 5 ounces
MSRP - $220 (regular), $240 (long)

The Cosmic is a mummy-shaped bag that provides superior warmth, thanks to its 600-fill-power DriDown, duck plumage that's given a water-resistant treatment at the molecular level. While not waterproof, it'll stay dry longer to maintain its loft, which in turn traps heat. And it'll dry faster than regular down if wet. It comes with a stuff sack, full draft collar, comfortable foot-box, and a dual-slider zipper with anti-snag design.

Pros: Strong heat retention, Easy and comfortable to use, Lightweight and packs small

Cons: Restrictive fit means it's not ideal for those who toss and turn at night, No storage pockets to stash smartphone, flashlight, or self-defense weapon

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