Taion Mountain Down Shirt Unisex Down fill shirt from Taion. Made from a light yet warm 650 fill power down with an outer material made from high-density nylon taffeta with a water-repellent finish. Front button closure, two side pockets and two chest flap patch pockets. Outer Material: 100% Nylon Lining: 100% Nylon Down: 95% Feather 5% Model is 5’9” / 175cm and wears a size Medium Sizes run small, we suggest sizing up.