This is my favorite dinner jacket. It sits completely on my shoulders. Not too tight. And the fabric is also very light! You can see that it does a very good job. I highly recommend this very fashionable jacket.
But please read the size guide. Buy a big one. If you seem to be able to wear one size, then buy the second largest. I am usually 40-42R. The XL size I bought is 44, which fits perfectly.