Size Chart:(Product Measurement)
8Y:Straps Length:10.5IN,Bust:23.6IN,Length:29.1IN,Waist Size:22.8-29.1IN
9Y:Straps Length:10.9IN,Bust:24.8IN,Length:31.1IN,Waist Size:24.0-30.3IN
10Y:Straps Length:11.2IN,Bust:26.0IN,Length:33.1IN,Waist Size:25.2-31.5IN
11Y:Straps Length:11.6IN,Bust:27.2IN,Length:35.0IN,Waist Size:26.4-32.7IN
12Y:Straps Length:11.9IN,Bust:28.3IN,Length:37.0IN,Waist Size:27.6-33.9IN
This data was obtained from manually measuring the product, it may be off by 1-2 CM