Cooper & Jin no show socks are specifically engineered for daily classic/casual sockless styles. They sit well below the ankle for a true sockless look. As our originals, they have unique features as   * Optimized silicone grip at heel prevents slippage; * Precisely-cut elastic band holds feet tight; * High quality cotton brings softness and Breathability. Wash instruction: Machine wash Fabrics: Cotton/nylon/polyester/spandex