This is a very nicely made bra, which in theory, should work for a full-busted woman. The first time I wore it to my Zumba class (I work out at a high level), I was disappointed that there was so much bounce on jump moves. I could have tolerated that, but when I got home and undressed, I noticed that my breasts had actually slipped beneath the underwire. The size is correct, so that shouldn't be the problem.  My search will continue for a sports bra that truly supports someone who is amply endowed.