Was really surprised by this bra. I am a 32DD so I have a very hard time finding a sports bra that I can run in (normally I wear 2).  When I first put it on it was pretty tight so I thought I was going to be unhappy.  I was only planning to walk on the treadmill but then decided to run.  Before I realized it, I was running 7 mph and there was no bounce.  I actually forgot that I didn't have 2 bras on! Highly recomend!!