Fashion Elegant White Satin Steel Boned Underbust Corset N9625 White Satin Steel Boned Underbust Corset with Front Zip Emma White Satin Underbust Steel Boned Corset Glamorous Corset Deluxe White Satin Steel Boned Corset with Straps Musotica.com. This white satin underbust corset cinches your waist hard and holds all night without giving out on you. You zip up, walk in, and the room adjusts. Eight spiral steel bones keep the shape locked while the front zipper lets you get in and out fast without a fight. The kind of piece you plan a night around.