Size Chart:(Product Measurement)
8Y:Straps Length:8.5IN,Belt Length:51.2IN,Bust:24.4IN,Length:29.1IN,Waist Size:22.8-29.1IN
9Y:Straps Length:8.7IN,Belt Length:51.2IN,Bust:25.6IN,Length:30.5IN,Waist Size:23.6-30.3IN
10Y:Straps Length:8.9IN,Belt Length:51.2IN,Bust:26.8IN,Length:31.9IN,Waist Size:24.4-31.5IN
11-12Y:Straps Length:9.3IN,Belt Length:51.2IN,Bust:29.1IN,Length:34.6IN,Waist Size:26.0-33.9IN
This data was obtained from manually measuring the product, it may be off by 1-2 CM