I literally have been wearing them nonstop since Ive got them. I hate the normal wire bra. If I can wear the sport type bra, I will! Im a 36C and purchased a medium. They fit well. If you like them a little bit more snug Id definite recommend going a size smaller, but other than that a medium was perfect for me. Oh! And I would never workout in these. They are not that type of sport bra.