Boot Height: Approx. 8'' Tall . Waterproof membrane seals out moisture. Anti-bacterial, breathable, moisture-wicking PU sock liner. Cooling nylon mesh lining. Cushioned ball & heel pads. Extended wear, oil- & slip-resistant T7742 rubber outsole. Wide widths available! Take care of your feet while you work with a pair of Caterpillar boots! The 8'' Salvo work boot pairs a waterproof membrane with a nubuck leather upper. Rubber midsole. Durable Goodyear welt construction. Speed hook.