The Chill-Its 6609 Hard Hat Sweatband Liner is made with absorbent terry cloth to prevent sweat from dripping into eyes when working in hot environments. Soft and low-profile, it fits comfortably under hard hats without adding bulk. This hard hat sweatband fits most hard hats and safety helmets, easily and securely attaching to the forehead of the suspension with four snap button closures. Ideal for construction, telecommunications or anyone wearing head protection while working