100 percent non-metallic, with protective toecap and midsole, Flint is comfortable and lightweight, it’s developed with specialist comfort materials including a shock absorbing dual density EVA nitrile rubber outsole and Activ-Step PU anti-fatigue comfort footbed. · · · Anti-Static · · Protective Toecap · · Protective Midsole · · Water Repellent Upper · · Oil Resistant · · SRC Slip Rated · · Heat Resistant Outsole to 300°C · · 100% Non-Metallic Construction