I ordered this for doing cardio workouts at my gym as my head sweats a lot.  After wearing it the 1st time for only 40 min, I took it off & noticed tiny black spots.  Amazon was great about replacing it, but even the replacement did the same thing. For the price, it was not worth going through a return process again. But, I won't buy it again.  Also, the sweat still rolls down my face past this. It's really not very absorbant.