ATPV Rating 21 cal/sq cm, Arc Flash PPE Category 2, Areas Covered Head, Closure Type Hook and Loop, Color Black, Fabric Weight 6 oz, Features Hook & Loop Closure & Tabs for Attachment to Hard Hat, Horizontal Reflective Strip On Back Above the Neck, Warming Pack Pockets, Garment Type Hard Hat Liner, Includes Lining Yes, Flame Resistant Liner, Lining Material Cotton, Modacrylic, Material Trade Name Cotton, Size One Size, Standards ASTM F1506, NFPA 70E