Premium Workout Armband for ZTE Axon Pro/ Warp Elite/ Boost Max+/ Nubia Z9 Max/ Q705u/ Quartz/ ZMax/ ZMax 2 (Blue) Soft Neoprene Design, will not stick when sweating Transparent front windows allow full touch screen functionality Touch closure flap perfect for wrapping excess headphone cord around. Side slot to fit a key Adjustable & Removable touch closure restraint strap is designed to accommodate most arm sizes Compartment Size: 6.2  3 inch | Armband length without extra strap: 18in | Armband length with extra strap: 24in