Walls Men's Big Blizzard-Pruf Insulated Coverall 60% Cotton, 40% Polyester Imported Machine Wash Walls muscle back technology uses a large band of elastic across the back to increase your range of movement, elastic inserts at back waist Walls dry iq water repellent finish, double knee patches with an additional waterproof barrier for more protection and strength, hidden storm cuffs using comfort rib-knit Single needle diamond-quilted lining with six ounce polyester insulation Two zippered chest pockets, two front swing pockets with additional pass through, two back patch pockets - left pocket has a concealed zipper for added security Hidden storm cuffs using comfort rib-knit, concealed front zipper covered by storm flap