Hand wash in cool water and mild soap after every use. Lay Flat to dry. Never machine wash or dry. 31% Lycra 69% Nylon . The magic of the Miraclesuit� begins with Miratex�, a proprietary blend of fabric that delivers three times the holding power of ordinary swimsuits, without relying on inner linings and constrictive control panels to shape and trim. You get maximum control, without sacrificing comfort - triple the holding power - without the feel of a girdle. Miratex�, was developed after years of research. The silky texture feels soft and luxurious to the touch - something very unusual in a control garment. The high percentage of Lycra Spandex means that Miraclesuits keep their shape - and yours - without stretching or sagging. Because the fabric boasts a 4-way knit, it moves with you, and provides support in all directions. Instead of the "sausage effect" of being squeezed in the middle, as will happen with 2-way stretch garments, you get balanced control in all directions -- which is why, wearing a Miraclesuit� bathing suit, you'll look 10 lbs lighter in 10 seconds - the time it takes to slip one on.