Arc Rating ATPV 40 cal/cm². Fabric is flame-resistant, shell: 6 oz. (205 g/m²) Nomex® IIIA, Water-Repellent, insulation package: 14.2 oz. (480 g/m²), blend, shell: 93% Nomex® Aramid/5% Kevlar® Aramid/2% Other Fiber, lining: 100% Meta-Aramid, insulation package: 100% Aramid