Premium Materials: Made of the highest quality soft neoprene. The Smart Phone Armband case easily bends, flexes, twists, and folds without warping. Comfort-grip keeps the band firmly on your arm during workouts and running.Humanized Design: Secure built-in hidden key holder. Secret compartment stores your house key while exercising. Never worry about having to carry your keys in the pocket or losing them at the gym. Rear pocket allows for safe storage of ID Card, Credit Card, and Cash. In addition, with up and down headset locker, you can listen to music anytime at anywhere.Screen Compatiblity: Using your armband with the new iPhone 7, 7 plus, 6, 6s, 6 plug (5.5