Utilizing advancements in premium comfort technology allowed us to make this protective steel toe, hot weather boot like your favorite running shoe. With an upper constructed of durable flesh-side out cattlehide leather and abrasion resistant 1000 Denier nylon, the 600 ST is not only tough but comfortable too. BOOT FEATURESHeight: 8"(Standard Military Height)Upper: 100% cattlehide leather & nylon fabricMidsole: Highly cushioned, shock absorbent midsoleOutsole: 100% rubber VIBRAM SierraInsole: Single density molded removable insertSPECIAL FEATURESVANGUARD running shoe sole constructionSteel toe meets ASTM F2412-11 and F2413-11 standards for impact & compression and EH rated