What's the difference between a push-up bra and a plunge bra?
A push-up bra is designed to enhance your cleavage by pushing breasts together and upwards. Typically, this is done by adding angled padding to the bottom corner of each bra cup. They also usually feature a half or demi cup, which provides more space for cleavage.
The defining feature of a plunge bra is the deep V-shaped neckline created by the low center gore that extends down between the breasts, often to the bottom of the band. This allows the bra to stay hidden under tops and dresses with very low necklines.