Why do we need more than one style of bras? Look at how many different necklines woman wear and believe it or not, every style of bra gives us a different shape, which enhances each neckline. For example: a balconet bra goes great under a sweetheart neckline; a plunge bra works with a low V neckline; a demi-cup bra gives a clean line to a square neck top; So if you are ever wondering how many bras you should have, think of 2 for each different neckline you wear… and don’t forget your basic everyday or t-shirt bra.