The Halo Hinge™ Classic Hat includes the newly patented Hinge™ sweatband. The built-in Hinge™ sweatband features the SweatSeal® with GRIP Technology. The sweatband can stay in the up position during normal activity. When needed for excessive sweating, simply lower the Hinge™ sweatband and let the super absorbent fabric along with the SweatSeal® channeling characteristics do its job. The result, no more sweat running down your face, into your eyes or on your glasses. The Hinge™ insert works like no other hat on the market for keeping sweat off your face. Great for running, hiking, racquet sports, golf, workouts or any activity that promotes sweating.