It's Asian size,please check the detail size on the size chart image.
<br />100% Brand New with tag.
<br />4 colors available: Dark Blue, White, Black, Red
<br />4Sizes available:
<br />Asian M (US    XS,160-165cm/55-60kg)
<br />Asian L (US  S,165-170cm/60-65kg)
<br />Asian  XL (US    M,170-175cm/65-70kg)
<br />Asian XXL   (US L,175-180cm/70-75kg)
<br />If you have never worn an English Laundry shirt you have no idea of what you are missing.
<br />The look, feel, finish and exquisite detailing are reminiscent of custom tailored fine Oxford shirts.
<br />Pair it with your favorite designer jeans or slacks... For a western flair add cowboy boots...
<br />Size: Asian size is about  2-size-smaller than US size, so make sure you have checked the following chart before purchasing: (please allow 1-2cm differs due to manual measurement, thanks)
<br />NOTE:   Please compare the detail sizes withyours before you buy!!!
<br />Hint for choosing proper size:
<br />1. Use similar clothing tocompare with the size.
<br />2. Choose larger sizes if your size are same as the flat   measurement Size chart
<br />Attention:
<br />1.Please ignore the tag size comes with the clothes. The tag size sometimes can be a larger than our description size because those are for Chinese. We are 1 or 2 sizes smaller than European and American people.
<br />2.As different computers display colors differently, the color of the actual item may vary slightly from the above images, thanks for your understanding.
<br />Package Content:
<br />1 x  Shirt