Size Chart:(Product Measurement)
8Y:Bust:23.6IN,Length:29.5IN,Straps Length:9.4IN,Waist Size:23.6-31.5IN
9Y:Bust:24.8IN,Length:30.9IN,Straps Length:10.0IN,Waist Size:24.4-32.7IN
10Y:Bust:26.0IN,Length:32.3IN,Straps Length:10.6IN,Waist Size:25.2-33.9IN
11-12Y:Bust:28.3IN,Length:35.0IN,Straps Length:11.4IN,Waist Size:26.8-36.2IN
This data was obtained from manually measuring the product, it may be off by 1-2 CM