This bra is great for running.  Very nice support for a larger bust with minimal to no chafing.  Did not get 5 stars b/c it is a pain to hook in the back.  If you don't mind spending a little more, the shock absorber is more comfortable, easy to take on and off, and does not cause any chafing though it does not give quite as much support.  Still in search of the "perfect" running sports bra....