I bought this to wear underneath a dress for a Christmas party, but as it turns out, I wear it all the time...under everything!
It REALLY sucks in your tummy, and because it goes under your bra and you CAN wear your own bra, I find that it makes my boobs look really big!
My only complaint is that the length seems a bit short, and it rides up a little, creating a little muffin top if you are not careful. Other than that, I love this!