Nylon, cotton and spandex blend. Elastic waist. Tummy-taming panel. Targeted compression zones. Lifts rear. Legband-free design prevents bulges on thighs. SPAN-WI13. 2744. 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.