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 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 Get the best out of your new Sleeping Bag click here for sleeping bag care instructions. Regular ISO Extreme Rating: 15Adeg / -9AdegC ISO Limit Rating: 40Adeg / 4AdegC ISO Comfort Rating: 48Adeg / 9AdegC 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: 15Adeg / -9AdegC ISO Limit Rating: 40Adeg / 4AdegC ISO Comfort Rating: 48Adeg / 9AdegC 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