Size Chart:(Product Measurement)
8Y:Straps Length:10.8IN,Hip Size:34.8IN,Bust:25.2IN,Length:35.4/28.8IN,Waist Size:22.0IN
9Y:Straps Length:11.1IN,Hip Size:36.0IN,Bust:26.4IN,Length:37.0/30.2IN,Waist Size:23.2IN
10Y:Straps Length:11.4IN,Hip Size:37.2IN,Bust:27.6IN,Length:38.6/31.5IN,Waist Size:24.4IN
11Y:Straps Length:11.7IN,Hip Size:38.4IN,Bust:28.7IN,Length:40.2/32.8IN,Waist Size:25.6IN
12Y:Straps Length:12.0IN,Hip Size:39.6IN,Bust:29.9IN,Length:41.7/34.2IN,Waist Size:26.8IN
This data was obtained from manually measuring the product, it may be off by 0.39-0.79 IN