I have one. I don't know who makes it though...all I know is that I bought it at Bloomingdale's. I really like it. I feel really naked if I don't wear a bra and I have this backless halter that I love wearing to clubs. The backless bras are great because they have underwire to lift you up and a shaped cup. I use to be afraid that they would fall off but those adhesives are some strong little suckers!
No matter how much you sweat, they will stay on. The only problem is the end of the night peel-off. It hurts a little bit...especially if you're pain sensitive. But, the investment is worth it.