Silicone Push-up Free Bra. Front closure bra cups have adhesive inside. Free from any strap and side extension. Seamless, backless, strapless and invisible under sheer clothing. Shaping bra gives enhanced cleavage and fullness. This demi-cup bra is perfect for low cut, plunging necklines, etc... Cups are washable, reusable and easy to care for.