Sumaclife Gym Sport Exercise Armband (Size XL) with Key Slot for Apple iPhone 6S Plus/ iPhone 6 Plus (Pink) Soft Neoprene Design, will not stick when sweating Transparent front windows allow full touch screen functionality Velcro flap perfect for wrapping excess headphone cord around. Side slot to fit a key Adjustable & Removable Velcro restraint strap is designed to accommodate most arm sizes Compartment Size: 6.2  3 inch | Adjustable nylon velcro closure, fits arm circumference: 12.0 - 15.5 inches