Review (1/5): I can't imagine this would work for anyone!
Unusable. The garter-style clamps will only accept *very* thin, single-ply fabric. And the seam on the edge had better be almost nonexistent, too. The clamp bent with the second try - way too fragile.
I can't imagine a bra today that it would fit on. I suppose you could safety pin it, but then the lump of the pin would show.
In addition, it was very narrow. It just seems, all around, to be a bad design. Nice idea, though.
This one is going back.