For lofty, protective warmth you just can t beat genuine down. Our wind-resistant, water-resistant Down Jacket is a superb weather-fighter on its own--or it can be worn under the Heavyweight Parka (J799 and J799S, sold separately) for double the protection.,100% nylon shell and lining,600 fill power down insulation,Elastic binding at cuffs and hem,Open pockets,Open hem,Includes a separate polyester pouch to pack jacket into