MSA Safety 475395 Natural Tan Skullgard Cap Style Construction Safety Hard Hat With Fast Track Ratchet Suspension**** Regular Medium Size *** Designed to offer outstanding protection, the Skullgard Protective Cap Style Hard Hats are the standard for welders and elevated temperature working environments, such as steel mills.MSA Skullgard Hard Hat Features:Tested to radiant heat loads producing temperatures up to, but not exceeding, 350FApplications are for general purpose and elevated temperaturesType I, Top Impact ClassificationFas-Trac III Ratchet SuspensionANSI/ISEA Z89.1-2014 (Class G)Shell Material - PhenolicStandard size (6 1⁄2 – 8")Smooth CrownIndustries: Steel mills, welding, construction, open-pit mining, oil/gas/petrochemical refineries, rubber manufacturing, steam tunnels