Women's Red Velvet Underbust Steel Boned Waist Trainer Short Corset Etsy Helena steel boned underbust corset in black taffeta Underbusts UK Women's Black Velvet Underbust Steel Boned Waist Trainer Short Corset Sophisticated Double Steel Boned Underbust Corset In Black Blossom Satin Green Underbust Corset Reinforced With Steel Bones Black Steel Boned Underbust Corset Spicy Lingerie. This is a dark green velvet underbust corset with four front buckles, steel rivet trim, and a curved top edge that sits just below the chest. You lace into this and the room shifts. Ten spiral steel bones and five steel busk closures hold you locked in all night, no rolling, no slipping, no readjusting mid set. The kind of piece you plan a night around.