For clingy knits or close-fitting dresses, you sometimes need a slip that also functions as shapewear. Full shapewear slips will usually have some sort of bust support, either shelf style or underwire. There are also strapless control full slips--a one-piece wardrobe solution.
The compression material of a shapewear slip will hug your body, providing slimming and shaping. Many control slips have a smooth finish so that your clothes glide over them, without bunching or clinging. Shapewear full slips do have a tendency to ride up as you move, so be prepared for a little adjusting now and then."