Wow, I love these! They run at size if a tiny bit roomy in the pants. I wear a 14/16 and the bottoms have  a long crotch area that hangs to almost mid-thigh but this is an easy fix with taking the waist up and inch or two. I am very hippy so they definitely run large in the bottoms. The top is exactly right. I am a 40 which I think is an XL. The quality is outstanding; better than Vanity Fair. Nice mid-weight fabric and lovely non-scratchy embroidery and buttons. Overall you cannot go wrong with these and I would order your exact size.