Prevent sunburn and heat stress. These gaiters stop 98% of the sun’s rays from hitting your face and neck. And made of a polyester and spandex fabric, they’re soft and stretchy yet breathable. They’ll also wick sweat away—you can even wear them as a sweatband. Since they prevent bacteria growth from sweat, they won’t smell. To cool yourself off, wet them with cold water and airflow will create a cool, damp feeling.