If you've tried every bra out there and still bounce, try this one. Our first-ever 5-barbell rated bra ain't pretty, but our testers say it completely eliminates bounce. Literally, you won't move, and that's a beautiful thing. Sturdy nylon/spandex construction. We recommend this as the workout bra of choice for D, DD and DDD cups who don't want to bounce at all. Not ever. XS(32DDD-34C-34D-36C), S(34DD-34DDD-36D-36DD), M(36DDD-38C-38D-40C), L(38DD-38DDD-40D-40DD), XL(40DDD-42D-42DD-44D)