These Adult Athletic Ankle Socks are made of 80% cotton, 18% polyamide/spandex, and 2% elastane. They are machine washable (warm gentle cycle, air dry). We recommend hand washing all imprinted products. These are sold in pairs only. Two sizes may be combined to meet quantity breaks but not available for Less than Minimum (LTM) orders. Optional Embroidery imprint is available for a fee. Production times may vary due to imprint method. Complies with Prop 65.