80% Cotton + 15% Nylon + 5% Spandex Made in USA or Imported 1.Basketball Socks Material: 80% Cotton + 15% Nylon + 5% Spandex, Dri-fit fabric helps to keep feet dry, featuring moisture-wicking/moisture-management fibers and air-circulating ventilation channels. 2.Athletic Socks Size: Mens 6-11.5, Womens 7-11. Regular fit – true to size. As these socks are dri fit socks,so the size is a little tight ,it is normal 3.Toe Reinforce And Arch Design: Reinforced heel and toe for enhanced durability in high-wear areas;Arch compression adds support and stability to reduce foot fatigue, provide extra blister protection. 4.Multifunctional Sports Socks: The best for hiking, cycling, camping, running, jogging, mountain biking, travelling, lacrosse, tennis, golf and other outdoor activities. 5. Great Gift Idea :Pack of 5 vivid colorful socks.Super cool choice for you,your son,your girls.They will loves these socks.