So Neiman Marcus has this little gizmo that asks you your size in certain designers, then predicts what size you'll need in a item. http://www.neimanmarcus.com/p/.....at=product Look at the Your Best Fit button on the lace top. I don't think it works very well, I'm a medium in Vince and a large in Robert Rodriguez and it said I'd need a medium in the DVF top. I know I'm a large or 12 in DVF because she runs pretty small.