SPANX Back Seam Sheers (385),SPANX,385" /> This sheer fabric features a back seam that naturally slims your legs. Comfortable, stretch waistband stays-put and prevents digging in. Round, invisible toe seams prevent excess fabric from bunching in your shoes. Soft yarns with a matte finish and slimming textures provide a flattering look. Moisture wicking yarns in the feet ensure sweat-free comfort.