Playtex Secrets Perfectly Smooth Underwire Bra (4747). The Playtex Secrets Perfectly Smooth Underwire Bra 4747 features light foam padding for modesty. A handsome shadow stripe makes this a pretty everyday bra, and a perfect T-shirt bra! Available in up to DDD cups. Made of nylon/spandex for incredibly soft comfort. Playtex's Secrets Perfectly Smooth Underwire Bra features cushioned, cotton-lined Stop the Slip straps that stay on your shoulders.