you can choose the size refrence from following size measurements: XS size for US 0-2 waist:26""/66cm"" Bust:32.3""/82cm S size for US 2-4 waist:27.6""/70cm Bust: 33""/84cm M size for US 4-6 waist:29""/74cm Bust: 34.6""/88cm L size for US 8-10 waist:30.7""/78cm Bust: 36.2""/92cm XL size for US 12-14 waist:32.3""/82cm Bust:37.8""/96cm XXL size for US 14-18 waist:33.9""/86cm Bust:39.4""/100cm 3XL size for US 18-20 waist:35 4""/90cm Bust:40.9""/104cm.