1/ Universal Cell Phone Sports Armband – Fits 5.2???? to 6.5???? cell phones with their protective cases on, including iPhone Xs Max, XR, 8 Plus/7 Plus/6s Plus/6 Plus, Samsung Galaxy S9 Plus, S8 Plus, S7 Edge, A9, A7, J7, Note 9/8/6, Google Pixel 3 XL/2 XL, LG, Moto, and etc. Such as iPhone 6 Plus/6s Plus/7Plus/8 Plus/XS Max with Otterbox commuter cases, iPhone XR with Otterbox Defender box, and etc. Please check the product Description below for more compatible smartphones and cases. 2/ Premium Quality Materials and Universal Arm sizes: Our sports armband (running case) made of Ultra lightweight, stretchable, soft skin-friendly, breathable Lycra and neoprene. Also, hand washable, water resistant, sweat proof and eco-friendly. Grip with compatible keeps the band firmly on your arm during at gym, workouts and running. So you can focus 100% on your performance comfortable. In addition, two dual-slot adjustable Velcro will fit arm size from 9???? to 16????. 3/ Reflective stripe for safe running in low light conditions. Built-in reflective stipe around the transparent window of the sport armband, provides the visibility in low light condition and keep you safer when running or walking at night or in the early morning. 4/ Access to Touch Screen Operation: Enjoy the full use of your phone through the clear protective screen cover on the sport armband with fully touch compatible, easily answer calls, manage your playlist, or activate your stopwatch without removing the phone. Also, compatible with the home button of iPhone 7/8 via clear transparent window. Note it is NOT working for Touch ID fingerprint. 5/ Extra functions: A. Key holder perfect for house, car, box and other keys. Does not worry about having to carry your keys in your pockets or losing them at the exercising; B. Headphone and charger cutouts allow direct access to the phone through the sport armband; C. Card holder is built-in on the backside for cash, ID and credit cards for runners and body builders; D. A cable locker avoids the extra length of headphone cable.