Walls Men's Big Zero-Zone Insulated Coverall 100% Cotton Imported Machine Wash Shell constructed of durable 12 ounce 100 percent cotton duck with Walls dry IQ water-repellent finish 4 ounce mid-weight insulation with dimaond-quilted lining Elastic inserts at back waist and bi-swing back pleats for ease of movement Classic triple-needle stitching for adjustment Unique pass-through at side pocket for convenience