I think that the shirts are fake. Also, are you sure that the ones you showed in the last post (Thumby55) are authentic? I have numerous Prada dress and casual shirts, from different seasons, and all from high end retail stores like Barney's or Maxfield, and they *all* have the size directly on the "Prada" label at the back of the shirt. The exact design of the label varies, from a smaller black font on a white background on a longer, thinner, label to a larger, same colored (either black or white) font on a more squared label, but the size is invariably directly to the right of the "Prada". I have *never* seen Prada shirts with a separate size tag, either on shirts made for domestic (Italy) or import (U.S.A) purposes, unlike gucci shirts. Also, you should ask if there are upside down triangular reinforcements at the side seams, which Prada shirts invariably have.