Danner Men's Tachyon 8" Tan Leather-m Leather Importado Shaft measures approximately 8" from arch Durable, rough-out leather upper with 500 denier nylon Open cell polyurethane footbed allows for optimal airflow and superior durability EVA midsole for shock absorption Danner Tachyon rubber outsole features pentagonal lugs for superior surface contact AR 670-1 approved