2 Piece Stunning Bustier Corset with Keyholes and Open Back Roxy Plum O/S from G World Intimates. Bustier Corset with Open Rear Panty and Thigh High Stockings. O/S. One size fits most. Bust 30 inches to 36 inches. Cups A to C. Weight 110 pounds to 165 pounds. Waist 24 inches to 29 inches. Hips 34 inches to 39 inches. Ladies sizes: 0 to 10.