Checker Knee High Socks - Chex Black - Funky, Crazy, Fun, Derby, Softball, Soccer QUALITY AND COMFORT: Neon Eaters Socks are made from the most durable, high quality, comfortable cotton/polyester blend available. Say goodbye to pesky seams and fabrics that are not designed for your feet. Bamboo blend Smooth toe seam Reinforced heel 75% Bamboo, 18% Polyester, 4% Nylon, 3% Spandex