Classic Sweetheart Shaped Corset top is also known as overbust corsets. These all feature light-weight silhouette boning. Corset has adjustable lace-up ribbon in the back for a proper fit. For heavier boned corsets, please see Steel Boned Corsets. All corsets fit smaller than normal US sizing. Front steel busks closure from Bonitaz Corsets Royal Blue 2X European size. Please note Bonitaz Corset sizes fit smaller than typical US sizes. It is important for customers choose mainly based on their waist size. Waist 32 inches - 34 inches. Bust 40 inches - 42 inches. United States dress sizes 10-12.