I read the other reviews and took it a size up.  I'm just under 200 lbs.  In most clothes such as t shirts or blouses I buy an XXL.  I wear a 16-18 in jeans and such.  I ordered this jacket as a 3X.  If I were to order my normal size it would've been too small.  It is still fitted.  I can close the button.  I like that it is stretchy and breathable.  I think it looks pretty good.  I wore it to an interview and it felt good.