Quad-Hazard high visibility, liquid proof, arc flash, and flash fire protection. Thermo-Grid technology helps block out heat energy while the flame-resistant PVC coating on Nomex provides 100-percent liquid proof protection in a soft, lightweight jacket. ANSI/ISEA 107 Type R Class 3 compliant for high visibility. Conforms to ASTM F1891 for Arc Thermal Performance and NFPA 70E. Arc rating 11 cal/cm². Conforms to ASTM F2733 for Flash Fire Performance. Average predicted total burn area