I fit depending on the cut always S - M sizes. Since I did not know the T-shirts, I have in the event that they are cut into small pieces, ordered rather M. The t-shirts came who had indeed reported as size M, but rather corresponds to the size L, if not XL. I was the T-shirt to the side and back 15-20 cm pull until it spanned the shoulder seam seat well 5 cm below the shoulder to the upper arm. In the photos I have of the T-shirts with one of my old shirts, size M also compared. Especially the picture where the old lie on the new shirt, you can see the difference in size well. Too wertig the shirts not just act, but good, too much may be at the price do not expect, but the size should at least approximately match and differ not number two. Although I normally do not do that with clothing, the shirts have sent back as they are absolutely useless for me. Too bad.