Description Lapco FR flame resistant, ARC Rated, triple needle stitching on inseams, out seams, and arm seams. Lightweight for comfort, but durable. Elastic at back of waist. Pencil pocket on left arm. Zippered chest pockets and left back pocket to keep items secure. Sewn with Nomexthread. Brass zippers with Nomextape. Covered snaps for electric-arc protection. Safety: ATPV 4.1 cal/cm(2)., HRC 2., NFPA 70 E., ASTM F1506., NFPA 2112 Fabric: 4.5oz. Nomex(tm) IIIA-SAABA Finish