Comfort and mobility the nikecourt flex pure women's tennis shorts feature stretchy, sweat-wicking fabric for dry comfort and optimal mobility on the court. Benefits nike flex fabric stretches with your body for optimal range of motion dri-fit technology helps keep you dry and comfortable inner shorts offer support and convenient ball storage product details fabric: body: dri-fit 84% polyester/16% spandex. Side panels/waistband/waist lining: dri-fit 88% recycled polyester/12% spandex. Lining: dri-fit 92% recycled polyester/8% spandex. Gusset lining: dri-fit 100% polyester.