Silicone Buttocks Panty with Smooth Control Silicone Buttocks with Smooth Control Panty Instant Lift and Shape Shaper Panty with Sillicone Butt Pads Fits Firm and Holds you in tight! Small 0-2, Medium 2-4, Large 4-6, XL 6-8, XX 8-10 Instant Shape on rear looks natural and flattering!