Premium Running Armband with Key Slot for Blackberry Z3/ Z30/ Huawei P8 Lite/ Google Nexus 5/ Oneplus X (Black) Soft Neoprene Design, will not stick when sweating Transparent front windows allow full touch screen functionality flap perfect for wrapping excess headphone cord around. Side slot to fit a key Adjustable & Removable restraint strap is designed to accommodate most arm sizes Compartment Size: 5.5  3.2 inch (Fit up to 5" phone WITHOUT Case) | Armband length without extra strap: 18in | Armband length with extra strap: 24in