NWT Natori Women’s Dynamic Convertible Contour Sports Bra in White/LeadSize 34DDDContemporary sports bra features uniquely padded, encapsulated cups, underwires, and taller sides for a higher level of stability, with comfortable, strong fabrics that keep up with your workout. Made of nylon and spandex with polyester cup lining.Contour/t-shirt bra with hidden underwire cup features thin, light, stretch foam padding that continues down over the wire and out to sides to offer support and comfort.Channel for underwire is between foam cup pad and outer fabric.Cup is lined with microfiber that wicks moisture away.Rounded V-neckline stretches at the edge for fit.Wide, sewn-on elastic underband delivers a stable, consistent fit.Center - tall center panel with seam at center helps control bounce.Tall, smoothing sides and back are performance microfiber with reactive stretch so that fit doesn't change and remains supportive with sewn-on elastic at top and bottom.Extra-wide, flat elastic straps with restricted stretch distribute stress across shoulders, and have fully adjustable coated metal hardware at back.Center-pull straps are convertible, with S-hooks at back bases for a supportive racerback.Moisture-wicking actively dries out fabric to reduce clinging and helps to cool you.Average, modern coverage is supportive without being too covered up.Hook-and-eye closure at back has a soft texture, with coated metal hardware. See Fitter's Comments below for hook counts.