Boot Height: Approx. 6'' 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. Extra widths available! Take care of your feet while you work with a pair of Caterpillar boots! The Salvo work boot pairs a waterproof membrane with a full grain leather upper (89) or nubuck leather upper (42). Rubber midsole. Durable Goodyear welt construction. Speed hooks for easy lacing. Padded collar.