Refuel on your next cold backpacking adventure in the ultralight Hydrogen 30 Sleeping Bag, featuring ExpeDry technology that increases down performance and reduces the drying time. With an optimal ISO-tested comfort right around freezing, the Hydrogen will give you the warmth you need in a super-packable 800-fill-power down bag designed to easily stuff into any overnight pack. A thru-hiking favorite, the new gas bags provide lightweight warmth that's light on the Earth-perfect when you're looking to maximize miles or speed in the mountains and minimize weight and space in your pack. If going tent-less or camping with the car is in the plan, the Hydrogen will perform as a bivvy and a super-lofty trunk or rooftop snoozer. Features: RDS certified 800-fill-power goose down with quick-dry ExpeDRY treatment Anti-snag slider on main zipper and fold-down second zipper provide added ventilation and easy access in and out of sleeping bag Anatomically designed footbox with wrap-around construction increases warmth Smooth, curved baffles reduce down from shifting, increasing durability and reducing inconsistent heating inside bag ISO-tested for reliable temperature and comfort rating Stuff and storage sack included Specifications: Bag Temperature Celcius: -1C Bag Temperature Fahrenheit: 30F Tested Comfort: 36F/2C Tested Limit: 27F/-3C Footbox Size: 40.9 in, 104 cm Hip Girth: 57.9 in, 147 cm Includes Compression Stuff Sack: No Includes Storage Sack: Yes Includes Stuff Sack: Yes Insulation Material: Down defender, Goose Down Insulation Type: Goose Down Shoulder Girth: 63 in, 160 cm Stash Pocket: Yes Stuff Sack Size: 11.8 x 5.9 in, 30 x 15 cm Style Number: M14403 Product Weight: 1 lbs 12.6 oz,811.0 g Zipper Location: Left Zip Product Care: Machine Wash Cold, Use Liquid Detergent, Gentle Cycle, Do Not Use Powdered Detergent, Tumble Dry Low, Do Not Iron, Do Not Bleach, Do Not Dry Clean, Do Not Use Fabric Softener, Rinse Twice, Do Not Store Wet Marmot Men's Hydrogen 30 Left Zipper Long Sleeping Bag - Foliage/Kiwi