Wearing a thigh shaper is an excellent way to create a slim lean line under clothing. Firm control thigh shapewear use compression, often combined with extra control and boning. Firm control thigh shapers come in so many styles that you're covered under pants, dresses, skinny tops and skirts. Some firm control thigh shapers are constructed a lot like girdles, with control from waist to mid-thigh. High-waisted styles add a leaner look through the torso and back. Shapewear slips provide firm control under skirts and dresses. For clingy knits, look for seamless fabrics that smooth and slim with virtually no visible lines. Many thigh shapers have silicone grippers around the bottom of the leg, keeping the garment from riding up or bunching.