All my other jackets are XL and they fit fine. But the writeup for this jacket seemed to indicate that I should order it in XXL, so that is what I did. I don't know in what universe this jacket is XXL. It was a bit tight across the shoulders, but it missed closing across my belly by about 3"! No way could I wear this jacket without surgery.
On the plus side, it is beautiful and seems very well made. I wish it fit. Back it goes.