Marmot Helium Sleeping Bag Long Arctic Navy/Dark Azure Left Zipper. With an optimal ISO-tested comfort well below freezing the Helium will keep you toasty from head to toe 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 is in the plan you can count on the quick-drying ExpeDry to perform as a bivvy sack on cold wet or snowy ground or ledges. Specifications for Marmot Helium Sleeping Bag Long: Manufacturer: Marmot Color: Arctic Navy/Dark Azure Bag Size: Long Bag Shape: Mummy Zipper Type: Left Lining Material: Goose Down Insulation: Goose Down Gender: Unisex Shoulder Girth: 63 Foot Girth: 57.9 Hip Girth: 57.9 Packed Size: 14.2 x 7.1 in Weight: 2 lb Age Group: Adults Condition: New Application: Outdoor Fabric/Material: ExpeDRY Features of Marmot Helium Sleeping Bag Long Ultralight and packable certified 800-fill-power goose down with eco-friendly ExpeDRY water-repellent finish that increases performance and durability with reduced drying time 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 Package Contents: Marmot Helium Sleeping Bag Long Marmot M14405-19621-LZ: Helium Sleeping Bag Long Arctic Navy/Dark Azure Left Zipper