adidas Copa Zone Cushion II Soccer Socks is a comfortable, performance sock that's ideal for soccer.
Moisture-wicking soccer socks with a breathable, toe-cooling channel and targeted footbed cushioning.
Lightweight construction for a close, snug fit and excellent ball touch.
ClimaLite wicks away moisture.
Ventilated toe-cooling channel for extra breathability and targeted cushioning on the footbed for shock absorption.
Additional compression in the ankle and arch helps improve stability.

adidas sock guide: 
XS: 9C-1Y Youth Shoe Size
S: 13C-4Y Youth Shoe Size
M: 4Y-6 Youth Shoe Size, 5-9.5 Women's Shoe Size, 5-8.5 Men's Shoe Size
L: 10-12 Women's Shoe Size, 9-13 Men's Shoe Size