Waist cinchers offer firm control to the waist and tummy. They areworn below the bust and above the hip to firmly compress the wais They may be boned, often closing in front with hooks or they may cinch your waist with strong fabrics like polyester, and Lycra spandex. The amount of control varies, depending upon the blend and density of fabrics used. Waist cinchers are the perfect shapewear item for a woman seeking to create an hourglass figure under slim fitting clothing.