I recently purchased this bra and tried wearing it for my cardio kickboxing class. It really holds your breast in place and doesn't budge when you're jumping up and down, punching and kicking. The only bad side is that it's "molded cup" is not enough to cover your nipples from showing through. But this is the best sports bra that is in reasonable price range for high intensity cardio workout I've ever used. So I purchased 2 more.