I have been using Champion's "classic compression" sports bras for years.  They are the only sports bra I have ever been happy with in terms of controlling bounce.  This bra gave me the same amount of control(I am a 34B).  The only reason I deducted a star is because the description specifically said that it would give me shape rather than have me appear flat-chested.  I think my chest looks about the same in this bra as in the compression bra (with a shirt on).  Also, as other reviews mentioned, there are 2 raised lines over each breast, which, depending on the shirt you wear, can appear to be a nipple on first glance!  Overall though I would recommend this bra based on its control and support.