Magic Ribbed Comfort Plunge Bra. Magic Ribbed Comfort Plunge Bra is a stylish and soft bra in rib knit fabric. The bra has built-in support with removable inserts and is made of seamless fabric for best comfort. Magic Ribbed Comfort Plunge Bra is of a v-neck model which gives it a nice neckline. The bra also has a slightly wider shoulder strap for better pressure distribution and the back is completely smooth without the buckles for an even softer feeling.