WIDE COMPATIBILITY：Suit for cell phone less than 6.8 inches full-screen sizes. Compatible with devices up to 6.8 inches like iPhone Series: iPhone 11 Pro Max/11/11 Pro/XS Max/iPhone Xs/ Xr/ X/ 8/ 8plus/ 7/ 7plus, Galaxy S20/S10+/S10/S9/ S8 Edge/ S7 Edge, Google Pixel/Pixel Plus, P30/P20/P10/ P9 Plus etc. | FULLY ADJUSTABLE: The running armband with an extender strap allows adjustable sizes 7.5” -18.5” (19cm-46.9cm). Perfect for jogging, hiking, gym, workout, cycling, marathon, or walking the dog. | GREAT STORAGE: The exclusively pleated pocket perfectly holds your AirPods/ keys/ lipstick and so on; the inner pocket can carry credit card/ cash/ other belongings. | HUMANIZED DESIGN: Made of highly sensitive TPU the screens protect your smartphone from scratches, dirt, and sweat and do not interfere for touch screen capabilities. Anti-slip flap and anti-disengagement clasp hold the phone securely reflective strip for safety at night. | COMFORTABLE and DURABLE: Mpow running armband is made by elastic and breathable neoprene, soft and friendly to the skin. Sweat guide grooves for breathability and shock absorption. New-type nylon sticker is stickier and more durable than old types and can be stuck for more than 100 thousand times.