adidas Performance F50 Youth Shin Guards Special youth sizing with a smaller shield and lower profile makes this a perfect guard for young players Hard front plate protects the shins and the durable, soft cushioning on the back ensures a comfortable fit Single front closure plus attached ankle guard for optimal fit that stays in place during play Youth Guard sizing: Small fits ages 3-5 (height range 3'3"-3'10"), Medium fits ages 6-9 (height range 3'11"-4'6") Youth Guard sizing: Large fits ages 10-13 (height range 4'7"-5'2"), X-Large fits ages 14-17 (height range 5'3"-5'9")