Two Hand-Warmer Pockets Nylon Lining 100% Cotton, 100% Nylon, 100% Polyester *12-ounce, 100% cotton sandstone duck, heavyweight *arctic-weight polyester insulation Machine wash warm - separately Imported Layer up for warmth with Carhartt's Sandstone Vest featuring a nylon lining quilted to arctic-weight polyester insulation. It's constructed of tough 12-ounce, 100% cotton sandstone duck. The front zipper is backed by a storm flap to help seal out the cold. Inside, there's a pocket with a hook-and-loop closure, and outside there are two hand-warmer pockets. In back, a drop tail adds coverage and warmth.