Everythingless Bra!
Seriously, ladies, if you're top has so little fabric that you think you have to resort to one of these, you might actually be topless and just not realize it. This is apparently for women wearing the J-Lo dress but with 300% more boobs. The mechanics of these strapless bras seems to be elastic clamping of the breast, which may appeal to the S&M afficianados among you, but everyone else will have to sacrifice for fashion. The elastic looks tight and spring-loaded: I imagine this model, during the photoshoot, sneezed and both of these popped free and flew across the room like Nerf rockets. But I like to imagine those sorts of things all the time anyway.