It's Asian size，please check the detail sizer on the size chart image.Material: Cotton BlendColor: As Show the PictureDepartment Name: Children GirlsItem: Tops and PantsStyle: Two Piece SetDesign: CasualFeature: Stretch (Pants)Collar: O-NeckPocket: No PocketSleeve: Short SleeveTops Length: Hip LengthWaist: Elastic WaistColor Style: Natural ColorPattern: Floral and SolidOccasion: CasualDecoration: BowNote: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 5 sizes (100， 110， 120， 130， 140) 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)