The Caterpillar Zeb Slip Resistant Steel Toe Leather Work Boot is a sturdy and performance-driven boot designed for tough working conditions. With its superior slip-resistant sole this is a leather work boot that will keep you steady on the slickest of surfaces. These boots also feature a steel shank and a tough but comfortable removable polyurethane sock liner that will keep your feet dry and protected everyday. Steel Toe. Leather upper. Steel shank. Removable polyurethane sock liner. Nylon mesh lining. Goodyear Welt Construction. Heavy duty T810 slip resisting rubber outsole. ASTM F2413-05 I75 C75 Steel Toe. ASTM F2413-05 I75 C75 Electrical Hazard