It is US size, pls. feel free to buy You can choose a very correct size according the second image!! 
<br />(Men)Size S--Shoulder width:42cm  Bust:96cm   Length:68cm
<br />(Men)Size M--Shoulder width:44cm  Bust:102cm  Length:70cm
<br />(Men)Size L--Shoulder width:46cm  Bust:107cm  Length:71cm 
<br />(Men)Size XL--Shoulder width:48cm  Bust:112cm  Length:73cm 
<br />(Men)Size XXL--Shoulder width:50cm  Bust:117cm  Length:74cm 
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