I would suggest medium. I found the cut extremely slim in the Chateau. I can't imagine making a slimmer cut parka with that much down in it. I'm 5'9 and 170 and the medium was much too small. The large fits perfect. It's hard to go off measurements because the jacket's so thick. It makes me look 20 pounds heavier, not in a bad way. Though when I first started wearing it I knocked over a couple store displays; body wasn't used to it's new Michelin Man dimensions.