If Spanx and Victoria’s Secret were to have a lovechild, the offspring would be the SLIM by Cynthia Rowley collection. The designer has come out with a new way to wear intimates. The pieces are bras, slip dresses and high-waisted bikinis, but they incorporate technology that will make you look skinny. So if you are looking for all-in-one undies that hold you in, this kills two birds with one, very stretchy, stone. The pieces retail from $130 to $260.