40% olefin, 35% cotton, 255 stretch nylon work sock. - antimicrobial treated to protect the sock against bacteria which cause foot odor and athelete's foot - fully cushioned - true-fit leg - abrasion-resistant achilles cradle - virtually seamless toe closure - crew length is proportional to size - dri-release microblend performance fabric ~ dries fast The name says it all. Durable construction combined with comfortable protection. PACKAGED 2 PAIR BANDED. Fits Shoe Sizes: L - 9-12 XL - 12-15