Volume:Can be put 5.5 inch phone and others
Suited:Sport building,Hiking training,Outdoor activities
Headphone jack designed,convenience for listening music when running.
Durable material,wear resistant nylon,scratch-resistant,anti-tear,no fade,no deformation.
Waterproof,hard to decompose even soaked for long time.
Anti-theft,light and closefitting,not easy to be stolen.