I had to get a backless bra for a dress I was wearing and I came upon the NuBra. At first I was hesitant to buy it because of the price (59$ CAD before tax), but I looked around everywhere else and couldn't really find anything. On the box, it says the recommended hours of wear should be up to 6 hours. I followed that and felt the bra stayed on pretty good. It actually didn't feel too different from a regular bra. I'm a little disappointed with the push up though - it just pulls your boobs together and gives you weird cleavage unless you can get it on perfectly even on both sides ...