The Nike Dri-FIT Top is made with lightweight fabric and sweat-wicking technology to help keep you dry and comfortable from your first set to your last. Hem vents let you move naturally through your workout. This product is made with at least 50% recycled polyester fibers. Dri-FIT technology helps you feel locked in and cool. A slightly longer back hem extends your coverage. 93% Polyester/7% Spandex.