So how does this headband cool your head? First, it absorbs sweat. Then it holds it in as a moist band that rests against your forehead. Not only does this actually keep your head cooler than if the sweat just freely ran down your face, but it also keeps sweat from falling into your eyes and obscuring your vision. You can print your business logo or advertising slogan on it.The cooling headband is stretchable, making it effectively one-size-fits-all. It makes a wonderful promotional giveaway item for sporting good stores and fitness centers.