Features Tested & certified according to European standard EN 13634:2017 Chassis is constructed with synthetic leather that is flexible & abrasion resistant Reinforced TPU shin, ankle, & foot plates improve stability without sacrificing mobility Rigid steel shank reinforced sole eliminates flex & provides superior foot support Plastic closure strap with metal buckle is adjustable & secure Polyester inner lining wicks moisture Synthetic rubber outsole is long-lasting & provides superior grip Metal toe cap to reinforce & protect the outsole