I really love this bathing suit! I'm always hesitant to buy any clothes online, especially swimwear, but I am so glad I did!! I am about 155 lbs and ordered a Large..it fits perfectly everywhere!
For reference I'm 5'5 and 145lbs, and this is a size LARGE. I have a 36C bust and usually wear a medium in most clothes. I bought this suit in both sizes but the medium was just a little too tight around my mommy muffin top. The large was a little too loose to flatten the same area so I purchased a separate pair of tummy control bottoms.