This suit fits exactly like my last Dolfin suit, although they didn't have the solid black suit I had before. I'm between a size 10 and 12 and always order a 12 so I don't have to struggle into a suit. This is a great lap-swimming suit, covers everything and stays secure with the racerback straps. The only thing I don't like -- and I didn't notice it until I'd worn the suit for a day so I can't return it -- is that the fabric wasn't cut correctly and the suit has weird gathers at the neckline because of it. (See photo.) I was going  to order a second suit, so I'd have a backup, but I'm not sure now. The fit is good, and that's the main thing, but I would like one that looks like the one the model is wearing that's been cut correctly.