Miraclesuit Shapewear Size Guide Remove inches from your waistline in the Miraclesuit Waist Cincher. Waist cincher supplies a smooth and toned midsection for a flawless appearance under any type of clothing. Extra firm control. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.