Need a convenient waistband that carries around all your belongings while exercising? This Back Bay Slim Running Belt with 2 Pockets is what you need. This running belt is equipped with RunGrip technology that ensures it will never slip or bounce while you move. It has a slim pocket that expands to fit any phone, thanks to its accordion folding design. Its pockets are waterproof, so you need not have to worry about getting caught in the rain. With a stretchy waistband, it will surely fit any body type.