Steel Bone Lace Overlay Corset Waist Training Underbust Bustier Size run small, please choose one size larger than usual wear. Please see our size chart in the pictures area and choose mostly according to your waist size. 2 Pieces, including 1 Corset, and 1 Matched G Strings 12 flexible steel bones to give shape and support along with a strong steel busk fastening. Fully adjustable criss cross ribbon laced back, please try to adjust it to be more fit for your body. Fabric:shelter satin, lace, cotton lining