FEATURES 1152F Women’s Classic 9″ Side Zip Service Boot Slip and oil resistant quiet rubber outsole. Exceeds the ASTM F489-96 test standards, non marking.Electrical Hazard protection – ASTM F2412-11 and F2413-11.Stitched toe and heel for durability and increased service life.Custom molded phylon midsole for lightweight comfort and cradled support. Texon stability platform insole for lateral support and torsional stability. With steel shank to accommodate proper flex point to help reduce fatigue.Full grain polishable leather toe for improved durability and comfort. 1000 denier nylon upper for increased strength and durability. Custom molded thermoplastic heel counter and toe box to provide that already “broken in“ out of the box fit and additional lateral support. Moisture wicking lining protected with AEGIS antimicrobial. Gusseted tongue, dirt and debris protection. PU collar for easy cleaning. Foam padding in tongue and collar for protection and increased breathability. Removable custom fit molded orthotic for all day comfort, also treated with AEGIS. Durable brass alloy, rust proof hardware. Custom YKK zipper and housing with Velcro closure for easy on and off fit. Triple stitched upper with 3 ply bonded nylon thread for extended durability.