Size Chart:（Product Measurement）8Y:Bottoms Length:8.3IN,Waist Size:19.7-31.5IN,Bust:23.6IN,Top Length:3.9/3.7IN,Underbust:21.3IN9Y:Bottoms Length:8.7IN,Waist Size:20.9-32.7IN,Bust:24.8IN,Top Length:4.3/4.1IN,Underbust:22.4IN10Y:Bottoms Length:9.1IN,Waist Size:22.0-33.9IN,Bust:26.0IN,Top Length:4.7/4.5IN,Underbust:23.6IN11Y:Bottoms Length:9.4IN,Waist Size:23.2-35.0IN,Bust:27.2IN,Top Length:5.1/4.9IN,Underbust:24.8IN12Y:Bottoms Length:9.8IN,Waist Size:24.4-36.2IN,Bust:28.3IN,Top Length:5.5/5.3IN,Underbust:26.0INThis data was obtained from manually measuring the product, it may be off by 1-2 CM