BEAMS PLUS cotton-blend camp-collar shirt

I had very high hopes for this, and so I am very disappointed. The sizing is completely off. I guess there is different standards for what size is Medium-Large-Xtra Large depending on the country it is made in. These Beams Plus clothes are very small, a full size to size and a half off. I can wear an xtra large very comfortably, for this shirt the buttons don't even touch the button holes when I try to put it on. In fact, there is about a 2 inch in between the 2 sides of the shirt. I maybe could have worn this size 25 years ago.