Fiber resinforce resin shell for supplier impact protection . Class G, Type 1 hard hat meets ANSI Z89.1-2014 (Low Temp and High Temp rated), tested up to 2kV of electrical protection Hard hat and suspension components both tested to withstand radiant heat up to 350-Degree Fahrenheit. Machine washable breathable, padded sweat-wicking sweatband and top pad improve comfort with advanced evaporative technology; simply wet and shake, for hours of cooling