Nike Elite Basketball Arm Sleeve - Men'sThe Nike Elite Basketball Arm Sleeve is made with a Dri-FIT® fabric that pulls away sweat to help keep you cool and comfortable. Breathable mesh allows airflow. Flat seam construction lies smooth against the skin for less chafing. Tight fit allows for a wide range of motion. Sold in pairs. 84% polyester/16% spandex. Imported. One size fits most.