Perfect Fit - This sports armband work for 4-6inches Phone, the running armband which with two large space arm pocket keeps your cell phone, iPod, key, card, lighter and snickers close during exercise High Quality Material - Thick and soft spandex, water-resistant and sweat-proof with breathing fiber perfectly disperse heat and absorb sweat. Good for running or workout in any weather, protecting your skin and keeping your phone dry Flexible Wearing Ways - With adjustable elastic band dual velcro to fit most of any arm, double zippers could let you open the bag with many directions