NIKE Women's Filament Capri Running Tights polyester Dri-FIT fabric to wick sweat away and help keep you dry and comfortable Elastic waistband with internal drawcord for a snug, adjustable fit Ergonomic, flat-seam construction for comfort and to help minimize chafing Back zip pocket for secure storage Fabric: Dri-FIT 92% polyester/8% spandex