Durable cotton. Fully lined with 100% DuPont ™ Kevlar ®. Hidden structure stitching. Nylon bonded coats thread. Overlays (Hidden extra layers of Material). Water resistant coating. Outer material stretches. Upper ‘Box’ type pockets. Internal pockets. Buttoned style shirt. Soft edge cuffs. YKK zips. Secure internal pocket. DUPONT™ AND KEVLAR® ARE REGISTERED TRADEMARKS OF THE E.I. DUPONT DE NEMOURS AND COMPANY AND ARE USED WITH PERMISSION.