Women Black Pvc Corset Underbust Steel Boned Waist Training Etsy Black PVC Underbust with halter strap women corset Daisy Corsets Lavish Black Patent PVC Vinyl Curvy Cut Mini Cincher Queen Women PVC Underbust Corsets Double Steel Boned Waist Etsy Woman Black Steel Boned PVC Underbust Corset SKAF IMPEX Women Black Pvc Corset Underbust Steel Boned Waist Training Corsets CW. This is a glossy black patent PVC underbust corset with a front zip closure and serious structure built in. You walk in cinched, and the whole room feels it before you say a word. Twelve steel bones, four static in the back and four static in the front with eight spiral bones running through the body, hold their shape through every move you make. The kind of piece you plan a night around.