Kenetrek Men's Hard Tactical 100% Leather Rubber sole 2.8 mm thick premium full grain leather upper utilizes a one piece vamp with no seams down the tongue for better abrasion resistance and waterproofing 7 mm nylon midsole provides extra support in rugged terrain with heavy loads Cupped sole with toe bumper for extra support and abrasion resistance Wind-tex waterproof breathable flexible membrane Eurosuole Everest rubber outsole provides excellent grip and durability