Like a few others said, you might want to order a size larger than you usually wear. I usually wear a size medium, and I got one. The underbust (while still fitting) had to be widened a little bit to fit me. It still looks good, but the lacing has to be a bit farther apart to look right with my hips. It is still very sturdy and nice though and I am still satisfied with the product. Also a thing to keep in mind is even if you do fudge the sizing a little it can also be tightened or loosened as long is it is pretty close as for me ordering one size to small.