The sellers page states that a medium size is 38-40 ( which would have been perfect). However on arrival the coat label says medium is 40-42 and that is too big. Fortunately for me , a friend bought the too large coat and I have ordered the small. Lets hope that one fits. The coat itself is very cool and I love the material. an update----- got the small today and it fits great 36-38. Its a very smart looking rain coat. would reccomend it.
This coat will fit above your suit and is an excellent raincoat. You can also just wear this on a casual basis and look like Jason Bourne lol. My only peeve about it is that it needs to come in more different colors for different suits, like blue perhaps, or grey.