It's Asian size，please check the detail sizer on the size chart image.Material: Cotton Blend2 Color for your choice: Orange， BlueNeck: Doll NeckSleeve: Short sleeveButton: Single breastedStyle: CasualDecoration: Bow-knotCrotch open/close Type: ButtonDesign: CuteDepartment Name: ChildrenNote:1. Hint for choosing proper size， use similar clothing to compare with the size.2. Choose larger sizes if your size are same as the flat measurement Size chart.Size: There are 4 sizes (70， 80， 90， 100) available for the following listing. please allow 1-2cm differs due to manual measurement， thanks (All measurement in cm and please note 1cm=0.39inch)