Nike 3-pk. Graphic No-show Socks - Boys Sock Size: M, Shoe Size: Youth 5Y-7Y Arch support provides snug, secure fit and stability Vibrant colors for a fun, stylish design. Fabric: 68% Cotton, 30% Nylon, 2% Spandex Reinforced heel and toe for extra durability in high wear areas No-show silhouette for a low-profile look