VDONA Sexy Satin Purple Lace up Boned Lingerie Overbust Bustier Corset Top & Fashion Tutu Skirt Set This corset is lace up at the back, it can be adjustable. Show/Clubwear Corset top Material : 90% Polyestet ,10% Spandex 3 Pieces, including 1 Corset, and 1 Matched G-String,and Tutu 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