Coeuspow Sports Running Armband Armabnd for iPhone 6S/6 plus (5.5 inch), Running Exercise Gym Sport band with Dual Arm-Size Slots , Water Resistant Sweat Proof + Key pocket Holder (Black) Perfect fit for: Apple iPhone 6 plus (5.5 inch) Material: Lightweight soft neoprene that is molded to twist and bend but will not stretch out of shape. Water Resistant and sweat-proof function to better protect your mobile phone, make you feel more comfortable during exercise. Functionality: Adjustable stretchy Velcro armband protects and stabilizes cellphone without slipping or constricting,enjoy your exercise.Able to access to headphones, buttons, touchscreen feature on the cell phone. Safety Features: Built-in hidden key holder to help you minimize carrying extra things when hitting the gym ! Built in Reflective strip for safe running in low light conditions. Sizing: Adjustable Velcro band supports a wide range of arm girth from 10.8" to 16.5"