adidas Youth Sock Shin Guards. A soccer sock with a built-in shin guard for young players just beginning with the game. Youth size for growing legs. . Removable; integrated polypropylene hard shield for easy washing. Polyester/elastane socks with built in pocket. S: Ages 3-5; height 3\'3\'\' - 3\'10\'\' M: Ages 6-9; height 3\'11\'\' - 4\'6\'\'L: Ages 10-13; height 4\'7\'\' - 5\'2\'\' XL: Ages 14-17; height 5\'3\'\' - 5\'9\'\'