Adjustable stretchy Velcro armband protects and stabilizes your cell phone, without slipping or constricting, so you can exercise for hours with your favorite entertainment, stay connected and enjoy great comfort. The built-in hidden key holder helps you minimize carrying extra things when hitting the gym! We've even included a reflective strip, for safe running in low light conditions! Made from the highest quality soft neoprene, the Smash Terminator armband is molded to twist and bend, but will not stretch out of shape. Cable of standing up to even the very toughest of workouts or marathons, the Smash Terminator armband will cope with anything you can throw at it! Very easy to insert and remove your device. The armband is even hand-washable with gentle soap and water, then air dry.