On Oprah's show last week there was a program on how to make your butt look smaller in clothes.
This is an example of the new generation of body shapers. They are made from microfiber and really help to make your butt and thighs look slimmer. They're called the 'seamless body slimmer' and the one shown here is part of the Donna Karan Body Perfect Collection. This was the 'new age girdle' recommended on the Oprah show for an overall shaping and slimming effect.
I have a friend who has a perfect barbie doll shape but she says that wearing these new body shapers is her secret and the only way she can fit into the same skirts she wore ten years ago.