Panties can do extra duty as shapewear, offering varying levels of control. Typically control panties will have waistbands that sit at the natural waist or higher and leg openings at the top of thigh or lower. The more coverage, the more opportunities to smooth and shape.
Firm-control panties are usually made of stretch microfiber with 4-way stretch. Many styles will have all-around shaping along with an additional tummy panel that adds even more targeted smoothing of the midriff. Some firm control panties are very high-waisted, with strong compression to smooth the entire torso. Control panties will usually have full-coverage rears and construction that lifts and shapes the derriere as well. When your clothing calls for a sleek and smooth silhouette, firm-control panties get the job done.