NWT CUPSHE Black One Piece Swimsuit

Brand new with tags one piece swimsuit from CUPSHE. See photos for reference and size guide. Just as a FYI, I am a true US size S (4-6) and I was worried that their swimsuits would fit small since it is an Asian clothing company. After trying them on I can say that they are true to size. I ordered M and it was too big on me.