Caterpillar and Mike Rowe teamed up and built these boots to stand up to Mike's dirtiest, toughest jobs. Built with rugged materials and constructions in classic work styles, they'll handle all the abuse you can throw their way. Full grain leather upper. Mesh lining. Rubber outsole. Nylex / Poliyou sock liner. Rubber midsole. EVA midsole. Cement construction. New: In Original Box.