This is a bespoke plus-sized merry widow corset.  It has a low back, white satin cover, black satin boning embellishments, a metal busk, and a lacing panel.

Core: Two layers of corset coutil
Cover: White polyester satin
Bone Accents: Black double-satin ribbon
Cup Size: “D”
Boning: 1/2″ flat spring steel bones
Piecing: 8 panels per side
Busk: metal straight busk