The Nike 7 Inch SW 2-In-1 Running Shorts are manufactured with Dri-FIT fabric. This high-performance material, constructed from microfibre & polyester, helps to draw sweat away from the body so that it evaporates into the air from the fabric surface to provide maximum comfort whilst you exercise. An inner tight short, manufactured from a stretch fabric, provides a secure, snug & comfortable fit without restricting movement, providing greater coverage & support.