Columbia Women's Powderhouse Jacket Shell: 100% nylon, 100% nylon (insert), 57% recycled polyester, 43% spandex (mesh); Lining: 100% polyester, 100% nylon (lower), 100% polyester (brushed); Insulation: 50% polyester, 50% recycled polyester Omni-Heat thermal reflective and insulated Omni-Tech waterproof/breathable, critically seam sealed Removable, adjustable storm hood