Size Chart:(Product Measurement)
8Y:Length:13.8IN,Waist Size:18.9IN
9Y:Length:14.6IN,Waist Size:19.7IN
10Y:Length:15.4IN,Waist Size:20.5IN
11Y:Length:16.1IN,Waist Size:21.3IN
12Y:Length:16.9IN,Waist Size:22.0IN
This data was obtained from manually measuring the product, it may be off by 0.39-0.79 IN