1. Universal Phone Size: Never leave your phone behind with the secure armband that can hold your phone with a case on. 2. Lifestyle design: The discreet, stylish design makes this the perfect phone holder for an active lifestyle. 3. omfortable: The comfortable material hugs your arm like no other armband you've used before. 4. Headphone hole design: We recently added two slots on the bottom of the sleeve where you can easily insert your headphone cord and connect to your device. 100% And High Quality Running Mobile Phone Arm Bag Universal Breathable Sports Accessories Armband Jogging Bag Phone Armband Case Outdoor Arm Bag Size-S:17 x 10cm Conversion:1inch=2.54cm, 1cm=0.393inches Color: Black Material: Polyester Package Contents: 1 * Phone Arm Bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.