Warmth Rating Earned: LEVEL 3 - WARMEST, 12-ounce, heavyweight firm-hand, 100% ringspun cotton duck, Quilted nylon lining for easy on and off; Arctic weight 100% polyester insulation for ultimate warmth, Pleated bi-swing back for extra stretch across the shoulders, Corduroy-trimmed collar with hidden snaps for attaching optional hood, Full two-way brass zip front with hook-and-loop storm flap, Internal rib-knit storm cuffs with ergonomically shaped sleeve hems help keep out the cold, Two inner pockets, Two chest pockets with flap and hook-and-loop closures and two large lower-front pockets, Carhartt-strong, triple-stitched main seams,