I ordered a S/M and got a medium. I am 5'7" and not busty at all. The top fits so so so well and I am in love with it. The bottoms however are very skimpy. At first I couldn't tell which side was the front and which side was the back. It is definitely cheeky if not a thing so if you are looking for that, this is a good bathing suit. It is a nice material (two layers like normal bathing suits. The top came with pads too. Both the top and the bottom have adjustable tie strings so they can be adjusted easily.it came in about 18 days, and in good condition. Great buy especially for the price! Overall, top is perfect, bottoms are too cheeky for me but if you like that... And if not, the top will go with plain color bottoms.