Columbia Women's Platinum 860 TurboDown(tm) Down Jacket 100% nylon/800 fill goose down + Omni-Heat synthetic insulation. Outer shell constructed of 100% nylon 30D micro ripstop fabric Lining constructed of100% polyester Omni-Heat Reflective Microtex DP 860 TurboDown insulation combines Goose 800 fill power down insulation + 60g Omni-Heat insulation Omni-Heat thermal reflective lining prevents heat loss Water resistant fabric