Kelty Cosmic 40 Degree 550 Down Sleeping Bag

Remember the trapezoid from 10th-grade geometry? Turns out, this funky ol’ shape is ideal for helping sleeping bag baffles retain heat. The trapezoidal baffle construction improves on our best-selling Cosmic sleeping bag—and it’s just one of the reasons the Cosmic Down 40 is still our favorite three-season superstar. We 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
• Lightweight and warm 550 fill down
• 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 fabric
• Zipper draft tube with anti-snag zipper design makes it easy to get in and out
• Dual slider for ventilation with locking zippers
• Natural fit spacious footbox = more room to wiggle your toes
• Comes with stuff sack for quick departures
• Get the best out of your new Sleeping Bag

  click here for sleeping bag care instructions

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Regular

• ISO Extreme Rating: 15° / -9°C
• ISO Limit Rating: 40° / 4°C
• ISO Comfort Rating: 48° / 9°C
• Fits to: 6′ 0″ / 183 cm
• Weight: 1 lb. 12 oz. / .73 kg
• Fill weight: 9.14 oz. / 259 g
• Stuffed size: 7″ x 10″ / 18 x 25 cm

Long

• ISO Extreme Rating: 15° / -9°C
• ISO Limit Rating: 40° / 4°C
• ISO Comfort Rating: 48° / 9°C
• Fits to: 6′ 6″ / 198 cm
• Weight: 1 lb. 15 oz. / .88 kg
• Fill weight: 10 oz. / 284 g
• Stuffed size: 7″ x 11″ / 18 x 28 cm
• Insulation: 550FP Duck Down
• Shell material: 20D 400T Nylon
• Liner material: 50D 300T Polyester