I think I have found a solution. The last time I wore one of these was at the gym and it never stayed on, even while working out!
It is so annoying when you are trying to work out in front or behind other people and everyone can see your boobs jiggle around. Of course this was not the bra’s fault but rather my own lack of control over them during exercise. Well, now that they are hanging down again for all to see, thank goodness someone has finally come up with an ingenious way to keep them from slipping off!