Size Chart:(Product Measurement)
8Y:Bust:29.1IN,Length:34.3/26.8IN,Straps Length:9.1IN,Waist Size:23.6-29.9IN
9Y:Bust:30.3IN,Length:36.2/28.1IN,Straps Length:9.4IN,Waist Size:24.4-31.1IN
10Y:Bust:31.5IN,Length:38.2/29.5IN,Straps Length:9.7IN,Waist Size:25.2-32.3IN
11-12Y:Bust:33.9IN,Length:41.5/32.3IN,Straps Length:10.2IN,Waist Size:26.8-34.6IN
This data was obtained from manually measuring the product, it may be off by 1-2 IN