Nolama Women's Body Shaper Slimming Waist Training Corset Cincher Black Designed for a smoother silhouette and instant slimmer effect. 80% Nylon & 20% Spandex, thin and comfortable material, medium firm control. Flexible boning anchors the cincher and prevents migration. Two columns of front hook-and-eye closures allow the size adjustment for the shrinking midsection. Find your perfect size: Measure your waistline above your belly button and choose your size according to the size chart provided in photo. Do not use your clothing size.