Supposed to be slim fit and I have Tommy slim fit in M but this one in M was huge. I wanted at least S or XS.
Nice shirt, especially in white, and good quality.
However, I really can't figure out the sizes in this brand, it's a matter of luck what it will do to you. I had ordered the exact same one in a different color MW0MW17771C9T and they had quite a difference in size between them...