Packed with safety features, including a full toe guard for extra protection and wear life. The rubber sole can handle slippery environments, electrical hazards, and can take the heat to 300 Celsius. Polyurethane midsole providing support and cushioning. Removable luxury PU footbed with arch support and the revolutionary XRD for supreme shock absorption. Footbed is also anti-bacterial, breathable, and washable. XRD inserted into both the heel and forepart of the sole construction. Electrical hazard resistant. American Podiatric Medical Association Seal of Acceptance. ASTM 2413-11 M I/75 C/75 EH