Curvy Cupcake 24 Steel Boned Corset Underbust Satin Waist Training Cincher Trainer 24 Steel Bones: Flat steel bones on center backing for support and strength. Spiral steel bones on style lines for flexibility and comfort. 100% Premium Satin Shell, 100% Cotton Twill Lining, High Strength 550 Nylon Paracord Laces 13.5" Front Center / 13" Back / 12" Side, Rigid Split Front Steel Busk Extended 6" Modesty Panel, Reinforced Hidden Waist Tape, 6 Hidden Garter Tabs, Pre-laced Waist Training Underbust Corset Cincher. Corset Sizing in Description. Amazon sizing chart not accurate.