A demi bra is a type of bra that has low cups and covers a smaller part of the chest. The cups of a demi bra are designed to cover about 50-75% of the breasts, leaving the top part of the breasts exposed, and come just above or just below the nipples. The purpose of a demi bra is to enhance cleavage by lifting the breasts slightly and drawing attention to the center. Demi bras are a flattering style for all breast shapes, but they work especially well for women whose breasts are fuller at the bottom than at the top. Compared to a full coverage bra, the demi bra offers a little less support. Demi bras are perfect to wear under low-cut clothes because of the low neckline, and they give a sexy look by exposing a large part of the chest.