The piece is made with a fabric of 66.5% nylon and 33.5% spandex, and the lining uses the same blend of 66.5% nylon and 33.5% spandex. The nylon-spandex fabric gives the piece a close, flexible fit, while the matching lining keeps the interior consistent with the outer fabric. The thin-strap, backless design suits a seamless, small-chest push-up style for everyday wear and warm-weather occasions, and the fabric's stretch supports the close fit this style calls for. The piece also features a cooling, breathable construction with moisture-wicking, quick-drying properties and antibacterial function.