Size Chart:(Product Measurement)
8Y:Straps Length:12.3IN,Hip Size:66.5IN,Bust:24.4IN,Waist Size:21.3IN,Length:27.2/20.3IN
9Y:Straps Length:12.6IN,Hip Size:68.3IN,Bust:25.6IN,Waist Size:22.4IN,Length:28.5/21.4IN
10Y:Straps Length:13.0IN,Hip Size:70.2IN,Bust:26.8IN,Waist Size:23.6IN,Length:29.9/22.6IN
11Y:Straps Length:13.3IN,Hip Size:72.0IN,Bust:28.0IN,Waist Size:24.8IN,Length:31.3/23.7IN
12Y:Straps Length:13.7IN,Hip Size:73.9IN,Bust:29.1IN,Waist Size:26.0IN,Length:32.7/24.8IN
This data was obtained from manually measuring the product, it may be off by 0.39-0.79 IN