The faja corset is made of high-quality nylon that tightly hugs the waist and requires no special care. Please note that steel boned corset size may vary from your normal clothing size. Be careful and CHECK the SIZE CHART before ordering. 20 metal bones of the shapewear tummy control corset create a tight-fitting frame to shape the waist. Lacing on the back allows you to adjust the short torso waist trainer tightness for a comfortable fit. Stylish waist slimmer for women design is suitable for wearing both under clothing and on top.