Anti-Static, Bio Based Materials, Fibreglass Toecap, Fuel Oil Resistant Outsole, Fully Sustainable Packaging, Heat Resistant Outsole to 300°c, Ladder Grip, PS Rated Aramid Protective Midsole, Recycled Materials, Scuff Cap, SR Slip Resistance, Waterproof Membrane, Water Penetration and Absorption of Upper, 100% Non-Metallic. RF741 Oakridge features Activ-Step® Comfort Footbeds and Activ-Tex® Membrane.