Ultra-comfortable and highly protective, the Carhartt Flame-Resistant Twill Shirt is built for a long life of rugged wear. Flame-resistant, cotton-blend twill fabric is triple-stitched at all major seams for even greater durability. Flame-resistant melamine buttons at the button-down collar, front placket, extended sleeve cuffs, and chest pocket flap closures offer added protection against hazards on the job. The shirt is engineered to meet the performance requirements of NFPA 70E and is UL Classified to NFPA 2112. 7-oz., 88% cotton, 12% high-tenacity nylon blend. Original fit. Imported. Style#: WFRS160.