The Primadonna Twist Glass Beach in Black. The semi-sheer straps will look great under your outfits, and the decorative ribbon at the front is removable. So you can pick the right look: sexy for the evenings and a little more serious during the day. Black gives you a sexy minimalist look. Perfect for a night out. There are several to choose from the full cup, balcony, deep plunge or heart shape. We just absolutely adore the hotpants with butterfly design on the back.