Our Sports Arm Band Case is a great training partner. Its touch-sensitive screen cover delivers sweat-proof protection, while giving you full access to the iPhone screen. It's velcro strap is designed to fit a broad range of arm sizes and offers just the right amount of stretch to move without slipping. It is built of breathable fabric that is ideal for extreme workout sessions. It also has an opening at the bottom to access the headphone jack . So whether you are working out in the gym, jogging or walking outside, you'll be able to access your phone in your arms, listen to your favorite workout beats and track your progress.