Size Chart:(Product Measurement)
8Y:Bust:28.3IN,Length:28.0IN,Straps Length:7.5IN,Waist Size:22.0IN
9Y:Bust:29.5IN,Length:29.3IN,Straps Length:7.7IN,Waist Size:22.8IN
10Y:Bust:30.7IN,Length:30.7IN,Straps Length:8.0IN,Waist Size:23.6IN
11-12Y:Bust:33.1IN,Length:33.5IN,Straps Length:8.3IN,Waist Size:25.2IN
This data was obtained from manually measuring the product, it may be off by 1-2 IN