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.
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
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