Ok so I have been seeing these things ALL over Facebook and am wondering if anyone wore something similar for their wedding or at all, really. My dress has a keyhole back so normal strapless bras are out. I met with my seamstress a week ago and this is the only thing I am concerned about. The bust is being taken in a little but offers ZERO support. Even with sewing in cups it isn't really going to lift like a bra would. These bras look promising but need advice! I'm a C cup.