The WCT 11'' Pull-On features an oil - and abrasion-resistant rubber heel and achilles guard, a moisture-wicking lining treated with Agion Antimicrobial, and a removable orthotic Airflow open cell PU insert with a moisture-wicking cover that is breathable from heel to toe, anti-bacterial, anti-fungal, and machine washable. It also has a tempered steel shank, welt construction, a cushioning forepart and heel shock absorber, and a ''Backhoe'' lightweight oil- and slip-resistant polyurethane outsole. The steel toe meets ASTM F2413-11 standards. Electrical Hazard Rating meets ASTM F2413-11 Standards. Barnyard-Acid-Resistant Bull Hide Leather upper.