60% nylon 40% spandex. Elastic waist. Close-fit pant firms the figure. Sleek style wicks and performs. Curved seams narrow hips and tush. SPAN-WP3. 1831. Smooth, slim, shape, and lift with SPANX, the ultimate wardrobe problem solver from Sara Blakely. With a full range of body-shaping innovations, SPANX provides the perfect undergarments for a blemish-free silhouette.