The C9 Champion Youth Ankle Socks give kids comfortable, moisture-wicking socks. Duo Dry technology helps wick away sweat so feet stay cool and dry. Arch support provides all-day performance and stable fit. Cushioning in the heel and toe delivers comfort without bulk. Targeted mesh panels add breathability. Socks are ribbed around ankle to help them stay put. Plus, they come in fun, bright colors and patterns kids love. Size Medium fits Girl's shoe sizes 10.5-4; Large fits Girl's shoe sizes 4-9.