Fit & Design: Crew socks that fit firmly in the traditional, daily height Soft U.S.-sourced wool, nylon, polyester, and spandex construction High density support along the base of the foot for versatile use Seamless toe closure for minimized bulk and friction to avoid blisters Low-stress seam design with reinforced construction to increase sock's lifespan Technology: Naturally resistant to odor and bacteria for long-lasting wear Additional Details: Recommended care: Machine wash cold and line or tumble dry without heat