The faja is a compression undergarment, similar to a girdle. The faja is worn very tight on the body to create an extremely curvy hourglass figure. The undergarment shifts organs and flesh and has been said to reduce one's appetite. The degree of figure shaping and body compression depends on the fabric composition. Versions can be found in mixtures of spandex, cotton, nylon, or latex; the less forgiving the material, the more flattering the effect. The undergarment may be closed with hooks, a zipper, or both.