Features . . Slip and oil resistant quiet rubber outsole and ladder grip control treads. Exceeds the ASTM F489-96 test standards, non marking.. . Electrical Hazard protection– ASTM F2412-11 and F2413-11. . Custom molded phylon midsole for lightweight comfort and cradled support.. . Texon stability platform insole for lateral support and torsional stability. Airport friendly with nylon shank.. . Full grain polishable leather toe for improved durability and comfort.. . 1000 denier nylon upper for increased durability.. . Custom molded thermoplastic heel counter to provide that already “broken in“ out of the box fit and additional lateral support.. . Foam padding in tongue and collar for protection and increased breathability.. . Durable brass alloy, rust proof hardware.. . PU collar for easy cleaning.. . Removable custom fit EVA orthotic for all day comfort. Also, protected with AEGIS.. . Gusseted tongue, dirt and debris protection.. . Custom YKK zipper and housing with Velcro closure for easy on and off fit.. . Moisture wicking lining protected with AEGIS antimicrobial.