Using insights from runners like you, we prioritized functionality to refresh our Swift essentials. This lightweight Nike® Swift Dri-fit Ultraviolet 1/4-zip Running Top has been designed to help reduce chafing. It's soft, sweat-wicking and helps block out UV rays so you can focus on your miles, and nothing else. Nike Dri-FIT™ technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. The top is tapered around the waist so that layering with other pieces is easier. A curved hem helps keep you covered through your stride. Plus, thumbholes let you extend your coverage and help hold the sleeves in place. Unhindered movement, modified raglan sleeves are designed to help reduce underarm chafing and allow for a wider range of motion.