Running Belt Waist Pack - Water Resistant Runners Belt Fanny Pack for Hiking Fitness &ndash; Adjustable Running Pouch for All Kinds of Phones iPhone Android Windows DOES NOT BOUNCE WHILE RUNNING: The belt stays in place while you are running. The adjustable band fits waist sizes up to 43" BIG ENOUGH FOR YOUR PHONE AND KEYS: There is plenty of room in the pouch to fit your phone. Like the Apple iPhone X, 8 Plus, Samsung Galaxy S8, & HTC Passport