Safely storing small items when you run or work out is a science unto itself. So why not put all that empty real estate on your arm to good use? This pocket fixes onto your arm via a band and can store phones, MP3 players, keys and other necessary odds and ends. The back panel is anti-slip and has moisture-wicking properties to keep you dry. Best of all, this pocket is completely unobtrusive and won’t disturb your running flow.