Size mearsured by ourselves, sometimes has some errors, but always within 3cm."" Please note 1 cm = 0.39 inch,1 inch = 2.54 cm. Please feel free to contact us when finding difficulty in choosing size,we will give you the best option. Note: The decal on the chest of the product picture is a fixed size, the decal will not become larger as the size of the clothes increasess Warm Tips:Its asian size,please choose one or two sizes bigger than yourself.