75% Acrylic, 15% Spandex, 10% Nylon Machine Wash SUPERIOR COMFORT – Superior softness and comfort that helps eliminate blisters and hot spots. BREATHABLE MATERIAL – Made from micro-denier acrylic and mesh upper for supreme air flow. DURABLE QUALITY – Double-stitched heel and toe for strength and durability. CLASSIC CONSTRUCTION – Featuring flat-knit style with a cuff height that measures 3 inches. VARIOUS FUN DESIGNS – Our collection of Classic Socks are available in a wide range of designs, colors, and size to suit your preference.