Microfiber fabric wicks away sweat and moistureIt is also thin, so it does not feel uncomfortable when exercising, and it is lightweight and does not strain the head.Comes with Velcro for size adjustment, so you can adjust the length according to your preference.It is easy to put on and take off, and fits perfectly on your head for both men and women.It can also be used to fasten your hair while applying face or makeup, as well as for indoor and outdoor sports, yoga, walking, and other light exercises.