A great extra layer, Carhartt's Duck Vest is made of cotton duck and insulated for warmth.,12-ounce, firm hand, 100% ring spun cotton duck canvas,Wind Fighter technology tames wind,Nylon lining quilted to arctic-weight polyester insulation,Rib knit collar,Brass center-front zipper with interior storm flap,Interior pocket with hook and loop closure,Two large insulated lower-front pockets,Locker loop,Drop tail hem,Carhartt-strong, triple-stitched main seams,Carhartt label sewn on left pocket,Relaxed fit