Bustier
The purpose of the Bustier is to push up the bust, forcing the breasts to move up, while gently shaping the waist. The bustier can also double as a push-up bra.
The bustier is great to wear with low-back outfits.
Corset
The corset will mold and shape the torso.
The corsets is used to slim the body and make it conform to a fashionable silhouette.