Fabric: 80% Combed Cotton, 15% Polyester, 2% Nylon, 3% Elastane (may vary with color), Seamless toe closure, Arch support, Athletic ribbed Every draw needs a reliable, everyday sock and our uncommon solids are steady as they come. Expertly crafted with lush combed cotton and available in multi of colors, the Icon is the essential, classic crew sock. Product care, machine wash in 40 C / 104 F. Avoid Bleaching or Ironing the socks. Socks will last longer if you keep them out of the dryer.