â— Tips before Purchase: the size is smaller than US, you may need to select 1 size up than your normal size. There are three sizes avaliable: Size-----------------------Waist size Small---------------------26.0-29.1 inch / 66-74cm Medium&Large----------29.1-31.9 inch / 74-81cm X-Large-------------------31.9-35.0 inch / 81-89cm