iLoveSIA Women's Waist Cincher Body Shaper Underbust Bustier Black US 12-14 Change size to true size on Aug 19th, please ignore Amazon Size guide,just measure your waistline and select suitable size from our list Nylon 74%+26% Spandex, Pull on Closure Adjustable3 columns hook-and-eye closure classic design, Front U Style to lift your breasts immediately Smooths abdomen, waistline, back, hips,Open gusset, Adjustable straps Front multi buckle design, breathable and sexy shell , firm control trimming waist, Idea for exercise or daily use, corrects posture. High compression. It helps to reduce 3-4 inches in waist when you wear it.