When I was being dressed by Avsh Alom Gur for the Booker he told me to bring along my 'understructure.' Now we may think that what our mothers used to call corsets are really uncool, but according to Av, there is not a woman who treads the Oscar carpet without major 'understructure.' Beneath the Chloe and the Chanel, there lies the mundane control garment. A selection of ratings of which can be found here. Spanx comes out on top. I'm not providing a picture, they're not supposed to be seen. This is what Av sent me to John Lewis to get, and it does work, very well and not especially uncomfortable.