Time tested, and operator approved, the Classic 9" SZ Safety Plus delivers the safety and performance features you rely upon to get the job done. Confidently take on the hazards of any environment knowing that this boot is equipped with a non-metallic LENZIA(R) board for your protection. Features: Slip and oil resistant non-marking rubber outsole exceeds the ASTM F489-96 test for slip resistance Electrical Hazard protection: exceeds ASTM F2412-11 and F2413-11 standards Airport friendly nylon shank for lightweight support and fatigue control Full grain leather / 1000 denier nylon upper for improved durability and comfort Custom-molded thermoplastic heel counter for instant comfort and lateral support ASTM F2413-11 approved composite safety toe LENZIA(R) non-metallic L-ProtectionA(R) anti-penetration board keeps your feet safe from puncture dangers with pre-treated ceramic and high tenacity fibers Foam padded collar and tongue for protection and increased breathability Moisture-wicking lining with AEGIS antimicrobial protection Durable brass alloy, rust proof hardware PU collar for easy cleaning Removable custom fit PU insole YKKA(R) side-zipper for easy on and off fit with VelcroA(R) closure Gusseted tongue to keep dirt and debris out