White Sierra Men's Mountain 3 In 1 Jacket Shell: 100% polyester 2 tone Sierra cloth twill woven; Lining: 100% nylon taffeta woven; Zip Out Liner: 100% Polyester rip stop woven Imported Waterproof, breathable fabric to keep you warm and dry during cold weather activities. The combination of multiple layers in the Mountain 3 in 1 jacket provide excellent versatility for all your fall and winter recreation. Zip secure chest pocket for storing cash, keys and your smart phone