FEATURES of the Western Mountaineering VersaLite 10 Degree Sleeping Bag Full down collar seals in your body heat to keep you warm all night 5 1/4″ spacing of continuous baffles that go from zipper to zipper 850 fill power provides a high warmth to weight ration and excellent compressibility Full-length #5 YKK zipper 20 oz down fill and 6″ of loft 62″/39″ Shoulder/Foot Girth gives you extra room to add layers on those frigid nights 2 lbs Total Weight