Because sun and sweat can feel just as challenging as the miles ahead, the Adidas Running x Adizero adult adjustable running cap will help you stay cool and focused thanks to its side perforations and pre-curved brim. The ClimaCool technology wicks sweat away so you can stay dry while the reflective elements help enhance visibility during a run after the sun sets. And this hat comes with the hook-and-loop closure at the back to let you find your perfect fit.