Sure-footed Wolverine® Wellington work boot has Nubuck leather upper and sturdy, flexible Goodyear® Welt construction. Unlined. Removable EVA foot bed. Nylon shank. Steel-toe model rated ASTM F2413-05 M I/75 C/75 EH. Chevron slip-resistant rubber/polyurethane outsole is resistant to oil, water, abrasion, chemicals, heat and slip. Available in medium-width sizes 711 (including half sizes), 12, 13; Wide sizes 911 (including half sizes), 12.