MSA 475395 Skullgard Protective Hard Hat Front Brim, Fas-Trac III Suspension, Standard Size, Natural Tan Skullgard helmets have been tested to radiant heat loads producing temperatures up to, but not exceeding, 350F. ANSI/CSA Type I Compliant, Protects from vertical impacts and penetrations ANSI/ISEA Z89.1-2014 (Class G) Compliant, provides dielectric protection up to 2,200 volts. Equipped with Fast-Trac III ratchet-style suspension for easy fast size adjustment and all day comfort Standard Size, Fits from 6 12" to 8"