I got this in a medium, but large would have worked too.  It fits perfect for my 52 141 frame, but I carry weight in middle and have broad shoulder.  Be sure to check out the Benson jacket, which I ordered as well.  It is stonewash and fits as expected.  I got it in large and it was perfect,  it replaces this Brewster jacket.  I love the Benson, which is a little heavier in weight than the Brewster.  Carthartt rules!