Nolama Women's Tummy Slimming Shapewear Breathable Girdle Waist Training Cincher 80% Nylon & 20%Spandex, medium firm control, elastic and comfortable for everyday wearing. 4 flexible steel bones for extra support prevent garment from rolling up or down. Help minimize the waistline and experience bust lift & posture support Front closure with 2 levels hooks & eyes for easy wear and the size adjustment of the shrinking midsection. Please Use the Size Chart provided in photo to determine your size.