The Nike Flex Mens Running Short is a suer light design to offer no distractions no matter what distance you train. The Flex fabric stretches with your body with added mesh panels to increase airflow. Internal pocket secures small items inc energy gels for in race fueling. 7" inseam provides moderate coverage without limiting range of motion. Elastic waistband has an internal drawcord to personalize the fit and built-in liner offers sweat-wicking comfort.