Kelty Cosmic 0 550 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 Kelty Cosmic Down 0 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. FEATURES: 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 actuala | 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 SPECIFICATIONS: Regular ISO Comfort Rating: 17AdegF / -8AdegC ISO Limit Rating: 4AdegF / -16AdegC ISO Extreme Rating: -34AdegF / -37AdegC Fits to: 6&'; 0" / 183 cm Weight: 4 lb. 9 oz. / 2.07 kg Fill weight: 39.51 oz. / 1120 g Stuffed size: 10" x 19" / 25 x 48 cm Long ISO Comfort Rating: 17Adeg / -8AdegC ISO Limit Rating: 4Adeg / -16AdegC ISO Extreme Rating: -34Adeg / -37AdegC Fits to: 6&'; 6" / 198 cm Weight: 4 lb. 13 oz. / 2.18 kg Fill weight: 41.55 oz. / 1178 g Stuffed size: 10" x 19" / 25 x 48 cm MATERIALS: Insulation: 550FP Duck Down Shell material: 20D 400T Nylon Liner material: 50D 300T Polyester