I ordered this for a recent vacation. I wear a size 6 in fitted tops, and bought the medium.

If you have a large chest or need that underwire or support, you may not like it. I am not busty, so that feature did not matter to me. It's perfect for covering the top of you belly and then also being more of a top. I wouldn't wear it into the pool or ocean for water activity though. It was perfect to throw on with shorts and be your top for walking around a resort too.

The bottoms were ridiculous. They fit as far as getting around your waist, but there really wasn't enough fabric to cover your body. It looks modest on the model, but those went to my younger cousin instead.

Top was worth buying the set though!