For what it's worth, I tried the field jacket on for size yesterday at Bloomingdales. I also tried their Eidos suit (whatever cut it is). Whereas the suit 52 fit me mostly OK, if not a little too trim in the arms, the field jacket in a 52 is cut much bigger in every dimension. For a better fit in the body (especially the length), I would probably need to size down to the 50. This may be the case for many of us shorter folks.