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