Nike's Dri-FIT technology which helps wick away sweat, and some variations are water-repellent. The fabric is a stretch-woven blend (either 100% polyester or a cotton/polyester/spandex blend) for comfort and range of motion. They are a chino style with a flat front, zip fly, and button or snap-hook-and-bar closure. They feature multiple pockets, including hand pockets and back pockets.