Oversize Herringbone Twill Double Breasted Blazer

I had high hope for this coat, style, fabric, and because my size is mostly XL I was sure that large maybe good if not small. I was so wrong, coat is huge which does not show front when buttons are closed, but there is bulk of fabric on the back looking like coat is really big, and looking bad, also because shape of this coat is kind of trangular narrowing toward button the sides also bulging badly. In summary perhaps Medium would look better on me, but Rack has only large, hence my problem and my return, sad.