Tough, strong and durable with a sporty design. All these elements you can find in the Onyx family. Seamless upper with CORDURA® reinforcements and reflective panels for great durability and visability. Poured polyurethane midsole together with a rigid and strong rubber outsole for perfect grip on uneven surfaces. The BOA® Fit System provides a perfect fit and allows for a fast and effortless entry and exit. ESD function according to EN IEC 61340-4-3:2018.