INOV8 made the Men's Trail Fly Ultra 7" 2in 1 Shorts so you can run in chafe-free comfort. The lightweight outer short has perforations to enhance airflow; the supportive inner shorts have a silicone print, preventing them from riding up. Stretch fabric & split side seams allow a full range of movement. Features include an inner waistband drawcord to keep the shorts secure, plus a rear zipped pocket that is large enough to keep your phone secure.