Size Chart:(Product Measurement)
4Y:Straps Length:10.2IN,Bust:19.7IN,Length:25.2IN,Waist Size:19.7-25.6IN
5Y:Straps Length:10.8IN,Bust:20.9IN,Length:27.2IN,Waist Size:20.9-26.8IN
6Y:Straps Length:11.4IN,Bust:22.0IN,Length:29.1IN,Waist Size:22.0-28.0IN
7Y:Straps Length:12.0IN,Bust:23.2IN,Length:31.1IN,Waist Size:23.2-29.1IN
This data was obtained from manually measuring the product, it may be off by 1-2 CM