Carhartt Women's FR Rugged Flex® Twill ShirtThis FR twill shirt is built with plenty of stretch and to fit you. 7 ounce, FR twill: 87% cotton 7% high tenacity nylon 5% polyester 1% spandex Relaxed Fit: closer to the body, but still has room to move Built to move with Rugged Flex technology Button down collar FR melamine buttons Two chest pockets with flaps and button closures Button adjustable cuffs Carhartt strong, triple stitched main seams Carhartt FR label sewn on left pocket flap; NFPA