I have to return this because the fit is bizarre. (Amazon needs to give us more review options besides "too big," "too small," and "fits as expected."
I'm 5'6 1/2" and usually wear an 8 or 10 so I got the Medium. The length is fine (low hip) and the cami overall is the right size -- neither too loose nor tight. However, the cups are way too close together. They're sewn in place into the shelf bra so I can't put them where they belong. I wonder if the company sized up from Asian sizes to fit U.S. sizes but didn't put more space between the cups to keep the proportions right? From the reviews, this seems to fit many people fine -- my guess is if you have a narrow rib cage but want more room around this might work for you. The fabric and sewing are nice and the neckline is flattering.

I'm a little worried someone else tried to return this and the company didn't reply -- I will update and either add or subtract a star based on whether the company stands behind their product.