1. Depending on your feet long to buy the right size .2. If your feet are fat, please get One Bigger size for this shoes, Choose Size As Your Normal Sports Sizematerial: PU+TPRColor:Yellow,Red,Green,Blue,Grey,Size:35-43 Our size is Asian size usually will get one size smaller than US/EU size. You can comparison the size of our table.If you still can not sure the size, we suggest you to choose a bit loose to avoid being to tight.Size ChartUS5.5=CN35=225mm(Bare Feet length)US6.5=CN36=231mmUS7.0=CN37=237mmUS7.5=CN38=243mmUS8.5=CN39=249mmUS9=CN40=255mmUS9.5=CN41=261mmUS10=CN42=267mmUS10.5=CN43=273mm