I am a 34ff, and have been looking for a decent sports bra for years. Have tried many brands, mostly European since they are the only ones that seem to come with small back and large cup sizes.  No other bra comes close, by far this is my favorite.  Provides excellent support, separation, it looks like you are wearing a regular bra not a sports bra.  I do Zumba, jumping jacks, anything you can think of and still feel comfortable.  I don't think I can love another brand more than this one. Whomever designed this bra, fully understands what is needed to make a great fitting sports bra.