Carhartt X06 Extremes Coverall / Arctic Quilt Lined - If you need rugged, warm, and complete coverage, we've got you covered -- with our Extremes Coverall. Constructed of our most durable 1000-denier Cordura®, water-repellent nylon. And lined with our warmest arctic-weight quilted nylon polyester. Under the collar are snaps for an optional hood (A113 Extremes Hood). Legs open to the waist with two-way zippers that feature protective wind flaps and snap closures. Convenient exterior chest pockets zip shut. And double knees add to the durability. If "on-the-job" means extreme conditions, this is the coverall you need. You can rely on it.