UP YOUR CUP: Removable bra pads Pushes up the breast and provides a smooth look while holding and enhancing your shape Sports Bra Padding Inserts.96% Nylon 4% Spandex breathable performance is very good. High quality WIDE APPLICABILITY: Swimsuit bra pads perfect for swimsuits, bra pockets, evening gowns, wedding dresses, sweaters & casual wear. Perforated Breathable Comfortable Wearing : Bra Inserts are thin, they are pretty breathable--even when sweating a lot.they don't interfere with the moisture-wicking properties of your sports bras.