Considering these bras go up to large cup sizes, they are not made for large cup sizes! They would be suited to smaller, less heavy breasts without issue. The back clasp only has two links which for cup size dd+ isn't sturdy enough to hold the girls in place! The bottom of the band fits snugly, but it gapes in the cleavage. I have kept them as they are ok for what I need them for (a sit down meal in a strapless dress, with barely any movement), but I wouldn't want to wear out dancing because there would be no support without the straps