From website: Designed to be seen, the Balconette is a bold style statement. Wide set straps and a straight neckline iconically frame, flatter, and shape. -Wide set straps and a straight neckline create a flattering effect -Soft, sheer, unlined, and breathable Power -Mesh delivers support without the weight -Lightweight underwire is flexible and distraction-free: no poking, no digging -Cups are sewn, not molded, with a darted seam for natural shaping -Bonded wing and neckline details provide band stability and support -Adjustable straps set with gold patent-pending hardware and a triple hook-and-eye ensure proper fit -79% Nylon/21% Spandex Hand wash cold. Do not bleach. Lay flat to dry. NWT, never worn (ordered a 36A, they sent a 42E... didn't even try it on)