Essential swoosh. A key piece for your running wardrobe, the Nike top can be worn on its own or as a performance layer. Sweat-wicking technology helps keep you dry, and thumbholes at the cuffs secure the sleeves while you're getting after it. Sweat-wicking comfort. Dri-FIT technology helps you stay dry, comfortable and focused. Stay-put coverage. Thumbholes at the cuffs help keep the sleeves in place while you run. Zip collar lets you adjust your coverage and airflow. Reflective pop. Reflective bar at the back helps you stand out from the crowd.