Arc Rating: 12 cal/cm². HRC 2. Fabric: 9 oz. UltraSoft®. Features: Covered zipper fly closure, Generous leg cut, Home laundry, Multi-Hazard Protection. Standards: ASTM F1506-10a, CSA Z462-15, OSHA 29 CFR 1910.269, NFPA 70E-2015, UL Certified to NFPA 2112-2012.