NSA C21IF05 Navy Heavyweight Zip Front FR Sweatshirt FR Sweatshirts 28 cal/cm? Compliant to ASTM F1506 for Arc Flash Complies with OSHA 1910.269 Compliant to NFPA 70E for Arc Flash Compliant to CSA Z462 for Arc Flash (Canada) UL Certified to NFPA 2112