Time tested, and operator approved, the Classic 9" SZ Safety delivers the safety and performance features, and the all-day-comfort you've come to expect from our Classic Series boots. Features: Classic outsole: slip and oil resistant, non-marking rubber, exceeds the ASTM F489-96 test for slip resistance Electrical Hazard protection: exceeds ASTM F2412-11 and F2413-11 standards Custom-molded phylon EVA midsole for lightweight comfort and cradled support Texon stability platform for lateral support and torsional rigidity Airport friendly nylon shank for lightweight support and fatigue control Suede leather / 1000 denier nylon upper for improved durability and comfort ScotchgardA(R) protects suede from spills and stains Custom-molded thermoplastic heel counter for instant comfort and lateral support ASTM F2413-11 approved composite safety toe Foam padded collar and tongue for protection and increased breathability Moisture-wicking lining with AEGIS antimicrobial protection Non-metallic rust proof hardware PU collar for easy cleaning Removable custom fit EVA insole YKKA(R) side-zipper for easy on and off fit with VelcroA(R) closure Gusseted tongue to keep dirt and debris out