BUT I love that it has 4 hooks in back and it is VERY sturdy.  nothing on earth can keep my boobs from bouncing, but this is the closest there is.  Actually this taught me it's worth more bouncing to not have to wear such a painfully restrictive garment.  You can go running in this, but you don't wanna wear it more than a few hours.  If you're large-breasted like me, that is.  It's probably fine on smaller women.  They never have to suffer.