Sierra Socks Men Premium Bamboo No Show Low-Cut Seamless Toe liners Socks-4 Pairs Pack 1002 80% Rayon from Bamboo, 18% Nylon, 2% Spandex. Machine wash cold. Tumble dry low. SOFT hand and comfortable. Perfect fit for sport, boat shoes, flats, sneakers. NATURALLY Anti Microbial & Anti Bacterial. Controlled foot odor. Anti-fungal SEAMLESS Toe meaning smooth stitching along the toe line. No irritation. CASUAL Fashion No Show Liner Peds 4 Pair Pack Socks AVAILABLE in White, Grey, Khaki, Black and Assorted (White/Black/Khaki/Gray)