kwmobile Sport Armband for OnePlus One Jogging Running Sport Bag Fitness Band with Key Compartment in The Sport Armband in Black TIME TO WORK OUT!: No more excuses! Thanks to the sports armband you can go jogging, walking, hiking or work out with your Smartphone. You can listen to music while exercising, see the track while running and much more. VARIABLE SIZE: the armband is designed for an arm circumference of up to 37cm and can be closed with a hook-and-loop fastener. PROTECTION AND FULL FUNCTIONALITY: With the sporty case your smartphone is safely protected against splashes, dust and dirt and in case of small crashes it is also sheltered through the sporty upper arm pocket. Thanks to the touch-sensitive and transparent surface you can still use the touchscreen of your smartphone normally. IT FITS: It is suitable for the OnePlus One. ALWAYS THERE FOR YOU: Your additional benefit with every kwmobile product: the help and assistance of our Customer Service.