VDONA Fashion Lace up Boned Satin Corset with Tutu Set Burlesque Costumes Plus Size Corsets run smaller. Corsets are sized by waist size, so please choose your corset according to your waistline, not your bust. do not use the Amazon size guide Party/Wedding/Show/Clubwear Corset top Material : 90% Polyestet ,10% Spandex 12 flexible bones and adjustable ribbon lace up back