Sporty safety shoes with aluminum toe protection and steel nail protection. The mesh structure of the upper material improves the breathability of the shoes. Sievi’s TractionPro® anti-slip soles ensure their excellent grip and wear resistance. FlexEnergy® heel cushioning binds the generated movement energy and directs more than 55% of it back into the steps. The BOA® Fit System tightening mechanism adds to the comfort of use.