Is it a bra or a bustier? This longline smooth underwire can be worn as a strapless bra or a lace bustier. Call it what you want, but this garment is gorgeous and highly functional. Light boning in the body and cups shapes and supports all sizes. Seamless molded cups give natural shaping. The 2" band at the bottom helps anchor and support this bustier. It's a strapless bra that actually stays up! Convertible straps are included for a halter or criss-cross back. Adjustable hook and eye back closure.