The Marmot Col Sleeping Bag is part of the Marmot Mountain Pro collection gear that's been thoroughly tested in extreme conditions, on every continent, for over 40 years. It's equipment such as this that continues the Marmot tradition as an industry leader in technical and innovative expedition gear. 800 fill power goose down insulation. Pertex Shield waterproofbreathable 30d 100% nylon 2 layer shell fabric. Pertex Microlight 30d 100% nylon ripstop lining. Filled and finished in Rohnert Park, California. Marmot cross baffle construction prevents down from shifting for no cold spots. 11 baffle and wrap around foot box increases warmth. Reinforced foot box lining. Feely draw cords. Velcro free, down filled collar. Velcro free face muff. Down filled draft tube. Ground level side seams. Zipper guards. Hidden draft tube pocket. Stretch tricot baffles. Stuff and storage sack included.