550 Fill power duck down meets 100g of superior synthetic Omni-Heat insulation in a silky, baffled, mid-thigh design that also happens to be one of the warmest, softest, and lightest jackets Columbia make. The Gold 650 Turbodown Jacketâ??s performance-enhanced down insulation is lined with thermal reflective silver dots throughout for body heat retention. Columbia jacket features water resistant fabric, 2-way centerfront zipper, zippered hand pockets, drawcord adjustable hem and comfort cuffs. Center back length: 34''. Material: Nylon, polyester.