One of the benefits of posture bras is that the tall powermesh backs offer back smoothing. There are no skinny back elastic bands that only tend to accentuate "back fat" around the edges. A tall smoothing side and back smooths the underarm area as well, distributing back fat rather than producing unwanted ripples. Many posture enhancing, back smoothing bras also feature spandex bands that form an "X" on the inner back to help straighten and smooth the back. Front closures make the smooth back possible and deliver wearing comfort as well. Many bras at HerRoom have tall, smoothing backs, but the posture bras are frequently much taller and therefore offer a smoother look under clothing.