FR MATERIALS: 7.5 oz fire-resistant 100% cotton twill, FR zipper, FR aramid threads.Double-stitched 1" silver reflective tape over 2" FR contrast stripe-ANSI/ISEA 107-20 Type O CLASS 1. Ultra X reflective area on the back and double ring tapes on the pants. FR Tag on left chest pocket and more FR info on inside Tag about UL Certification ENSURE SAFETY AT WORK: This fire-retardant coverall meets or exceeds the standards for HRC2 CAT 2, Arc Rating ATPV 10.1 cal/cm², and meets the requirements of NFPA 2112 standard on flame-resistant garments for protection of industrial personnel against flash fire, 2012 edition. NFPA 70E, ASTM F1506, and NFPA 2112 CAT 2 UL Classified. UTILITY CONSTRUCTION: Two-way, aramid-taped brass break-away zipper, metal snaps at top of zipper at neck, gusseted crotch. 2 chest pockets(2 with Velcro and a unique pen slot), 2 back and 2 side pockets,1 hammer loop and 1 carpenter tool pocket on right leg, 2 pass-through pockets, Velcro flag patch on left sleeve(convenient for your company logo replacement). RELAXED FIT: Relaxed fit with an elastic waistband offers more comfortable room when you bend or climb. An elastic waist helps workers have many conveniences and comforts when working. Machine wash, prewashed, preshrunk, and wrinkle-free. MULTI-USE: Made for welders, fitters, iron workers, electricians, and other industrial workers in the oil and gas field. It can be used for any kind of industrial and construction work. Reinforced stitching for durability. Perfect for high-risk jobs where safety comes first!