Size Chart:(Product Measurement)
8Y:Straps Length:11.8IN,Bust:22.0IN,Length:35.4IN,Waist Size:23.6-31.5IN
9Y:Straps Length:12.0IN,Bust:23.2IN,Length:37.4IN,Waist Size:24.4-32.7IN
10Y:Straps Length:12.3IN,Bust:24.4IN,Length:39.4IN,Waist Size:25.2-33.9IN
11-12Y:Straps Length:12.7IN,Bust:26.8IN,Length:42.7IN,Waist Size:26.8-36.2IN
This data was obtained from manually measuring the product, it may be off by 0.39-0.79 IN