It's impossible to not feel sexy and confident when wearing a bustier. The perfect mix of a push up bra and a corset, a bustier pushes the breasts up whilst tightening and sucking in the midriff and shaping your waist. Bustiers are less restrictive than a corset, yet provides a similar outcome. Many bustiers are lightly boned to give that classic corset shape. Bustiers are great to be used as an undergarment, smoothing the seams and creating a seamless transition from breast to lower body.