Size Chart:(Product Measurement)
4Y:Straps Length:8.7IN,Bust:21.7IN,Length:22.8IN
5Y:Straps Length:9.1IN,Bust:22.8IN,Length:24.4IN
6Y:Straps Length:9.6IN,Bust:24.0IN,Length:26.0IN
7Y:Straps Length:10.1IN,Bust:25.2IN,Length:27.6IN
This data was obtained from manually measuring the product, it may be off by 0.39-0.79 IN