Made with a nearly seamless design, the Nike Dri-FIT Knit Women's Long-Sleeve Running Top feels exceptionally smooth. Areas of more open knit allow for better airflow where you need it most. The slightly higher crew neckline provides a little more coverage for cooler weather. Strategic Ventilation Areas on the front and back have more open, mesh-like knit stitching. This allows body heat to escape where you warm up most. Having the mesh areas knit into the fabric, rather than as separately sewn-in panels, keeps the top nearly seamless and ultra-smooth. Lasting Comfort With the only seams on the sleeves, the sides of the top are super-smooth and soft. This premium construction provides a luxurious feel against your skin from start to finish. Stay Dry Dri-FIT Technology helps keep you dry and comfortable by wicking sweat away from your skin to the fabric's surface, where it quickly evaporates.