These thongs truly are all-in-one. Each one is made of our signature AirFlex® compression fabric, plus they're high-tech: the high-rise waistband is thermofused, with the fabric bonded by heat instead of seams. These shaper panties are high-waisted with firm compression to sculpt the tummy. The thong bottom goes completely invisible under clothes and doesn’t flatten anything. In other words, everyone will notice the curve-sculpting effects of these thong, but they won’t see any panty lines!