Anti-Static, Ankle Protection, Cold Insulation, Fibreglass Toecap, Fuel Oil Resistant Outsole, Fully Sustainable Packaging, Fully Waterproof, Heat Resistant to 300°c, Internal Metatarsal Guard, SR Slip Resistant, Water Repellent Upper, 100% Non-Metallic Construction. RF523 Vanadium features Activ-Step® Comfort Footbeds, FORCE10® Nitrile Rubber Outsoles and Impact Shield Internal Metatarsal Guard.