Fabric: Made with Nomex® IIIA fabric and autoclaved with our proprietary PerfectPress® process to give you a professional appearance that lasts. Triple-needle felled side and seat seams offer superior durability. Legs feature silicone beading for durable creases. One piece fully finished waistband. Two slack-style front pockets. Two rear welt pockets (left pocket has button tab closure). Metal shank button closure. Diamond crotch gusset brings greater comfort and mobility. Heavy-duty brass zipper.