Carhartt Duck Vest. CTV01A 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, Water-repellent and wind-resistant, 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