Premium Purple Armband Running Gym Sport Case Holder for Apple iPhone & iPod 4 / 4S 4G Durable, lightweight armband case keeps your devise secure and protected. Amband is one size fits all. Fully adjustable for comfort. Armband protects it from scratches, dust, shocks while running / doing sports. Armband is compatible with upper arm circumference: 10 - 15 inches 60-Day Return Policy (See Description)