Tumbled full grain leather with a water-resistant oiled finish. Comfortable manmade linings. Rubber midsoles provide support. Steel toe rated ASTM F2413-05, Class 75 - the best available impact & compression strength. Superior oil-, water-, & heat-resistant soles. Electrical hazard protection. The Caterpillar Holten is the basic boot every working man needs. It features a breathable nylon mesh lining with a polyurethane sock liner. Welt construction. Comfort padded collar. Speed hooks for easy lacing.