THE [MOST COMFORTABLE ARMBAND]: Unlike all the bulky and uncomfortable armbands on the market, we made our armband without the uncomfortable plastic and Velcro components that other Armbands have. Our Armband are made with our custom high end, lightweight, breathable performance fabric which stretches to FIT ANY SIZE PHONE with a case. SIZES FOR BIGGEST AND SMALLEST ARMS (4 comfortable sizes) - Small arms? We have your size. Very large arms? We have you covered too. To receive the most accurate size, please measure your bicep and choose from the following sizes - SMALL (7 inches to 9.5 inches) MEDIUM (9.5 inches to 12.5 inches) LARGE (13 inches to 16 inches) XL (16.5 inches to 19.5 inches) THE ONLY ARMBAND WITH [BUILT IN GRIP DOTS]: Goodbye to chaffing, pinched skin, slipping and sliding! Just enter your phone and other valuables into the armband and slide it up your arm. Our grip dots will keep your armband leaving you hands free and comfortable.

Universal Sizing - Fitting Screen Diagonal Size Up To 5.5 Inch, Fit For Apple iPhone 8 Plus/ 7 Plus/ 6S Plus/ 6 plus/ iPhone X 8 7 6S 6 and Other Below 5.5 Inch Cell Phones. Depending On Personal Habit And Cell Phone Size, You Can Remove Or Install Other Protective Cases，Including Otterbox, Lifeproof, And Trianium. Touch screen control - high sensitivity touch screen through the transparent pvc cover allows you to enjoy full navigational control of your phone Adjustable band - the strap can be extended up to 15 inch / 38 cm to fit for most arm girth