The Le Mystere Dos Nu nude back convertible bra is made of Hi-Tech microfiber with 2 sets of straps that provide seamless comfort. This convertible bra adjusts to any outfit easily! Choose from Criss- Cross, Halter and Wide Back. The Ly Mystere Dos Nu is 3 Bras in One. With the low back it accomodates low-cut dresses and shirts.