Nokia Lumia 830 Case, Shocksock [Reflective] [Black] Nokia Lumia 830 Armband, Sports Gym Bike Cycle Jogging Armband with Dual Arm-Size Slots and Key Pocket Custom Made Case for Nokia Lumia 830 - Black Optimal sports flexibility for the Nokia Lumia 830 Machine washable Dual arm size slots allow maximum adjustability Reflective material for night time use Colour: Black