If you wear a medium I would advise on getting a large or x-large.  Even though it looks like a coat, you're getting a jacket, which it is aptly described as in the title, in that this is terribly lightweight and thin. Guess somehow i forgot to read what i was buying, rather i just looked at the pictures. I got this on a lightening deal and don't think there is any value above sixty or so dollars. Remember, order at least a size larger.