Perfect for cycling, running, or anything else that works up a good sweat, the Halo II Sport Headband comfortably fits any size head to redirect sweat and moisture away from your face. Patented SweatBlock Seal technology pulls sweat away from your face and eyes. Dryline fabric absorbs sweat, wicks it away, and dries quickly. Antimicrobial silver ions embedded in the fabric prevent the growth of bacteria. Pullover design is comfortable and allows for easy onoff will not lose its shape or stretch out. Headband is 2 in. wide in the front and tapers toward the back for better ear clearance. One size fits both men and women. Stays in place during any activity and fits comfortably under helmets. Hand wash only hang dry.