Description Lapco FR flame resistant, ARC Rated, 7oz. 88% cotton 12% nylon blend twill shirt with four rows of lock stitching on the front placket to prevent unraveling. Double needle stitching on pockets, flaps, and shoulder seams. Sewn with Nomex thread. Color matched buttons. Uniform styling with back pleat for ease of movement. SAFETY: ATPV 8.8 cal/cm(2), HRC 2, ASTM F1506,NFPA 70 E, NFPA 2112