Underbust corset engineered for extended sizing and all-day wear. Premium cotton twill with YKK metal zipper front closure for easy dressing. 8 spiral steel bones plus 4 static front and back bones deliver structured shaping and support. Nickel brass grommets with thick cording in the back allow custom cinching for your perfect fit. 6" modesty panel for coverage. 100% cotton lining for comfort. Hand wash only.