SB PS E FO SR class shoes, with non-metallic TOP RETURN toe protection and non-metallic APT-PLATE midsole with zero perforation, for sole protection. Breathable fabric and MICROTECH on the upper and inner lining of 100% DRYFRESH polyester fabric, three-dimensional, antibacterial, abrasion-resistant, absorbs and releases moisture. EVANIT sole made of a special compound of EVA and nitrile with high resistance and variable thickness. Thermoformed, anatomical, perforated and breathable. Polyurethane/TPU sole with high electrical resistance.