4 xl: suitable for 60-68kg weight, chest : 80-95 cm

5 xl: suitable for 68-75 kg weight, chest : 95-108 cm

6 xl: suitable for 75-80 kg weight, chest :108-115 cm

7 xl: suitable for 80-88 kg weight, chest: 115-125 cm

10xl: suitable for 90-110 kg weight, chest :120-135 cm

NOTE： Swimsuits fabric elasticity is big, size is only for reference, thanks！