Wicking and breathable, stretch microfiber calf is combined with a cotton-blend, cushioned foot bed for in-boot comfort and performance; Engineered mid-foot compression supports tired feet; Reinforced heel and toe provide durability and long-term wear; Black band at top of calf ensures no color accidentally peeks out of your tall boots; 46% cotton / 37% polyester / 11% spandex / 4% rubber / 2% nylon