Been using the Halo sweatbands for several years now. The premise is the yellow rubber strip moves sweat around your eyes and off the side of your head.  It works.  I do a lot of cycling, both mountain and road bikes and using this headband has become as important as my helmet.  Just wouldn't ride without it.  They hold up well too. Usually last several years, and I throw mine in the washer after each ride.  But...not in the dryer of course.  The first headband tied in the back, and I thought I would have preferred that, but this one is fine too. Not to tight, though if you wear a size 8 or 9 hat it could get tight...mine is in the 7 range.