Halo Headbands perform better than any other headband on the market - guaranteed! They keep sweat and sunscreen out of your eyes and off your glasses while racing, training or working out. All products feature the patented watertight seal that keeps sweat out of your eyes and the non-slip surface keeps the band in place. Its lightweight, durable, abrasion resistant and will not lose shape. The skull caps provide maximum sweat absorption and sun protection along with the SWEAT-BLOCK technology. Even if the band becomes completely saturated, the SWEAT-BLOCK technology redirects the sweat to the sides allowing you to see clearly, all the time. Four-way stretch tops are made to fit smoothly over your head and feel comfortable under any type of helmet.