The lightweight, shaping fabric offers a flat tummy and smooth sides, while our Comfort Crack design ensures 24/7 comfort and no panty lines. Comfort Crack thong construction enhances your shape for a perky rear view and no VPL (Visible Panty Lines) Dig-free and roll-free waistband stays put, super powerful, breathable fabric comfortably hugs and flatters your shape. Stay-put strip on back of leg for extra security. Patent-pending Topnotch Crotch for the perfect fit that stays in place.