Sweat Band Replacement Accessory (18428) for Jackson Safety C10 Bump Cap, Safety Hard Hat for Minor Bumps, 12 / Bag 12 Replacement Sweat Bands for Jackson Safety C10 Bump Caps / Case Compatible Jackson Safety C10 Bump Caps are lightweight for comfort and molded from high-density polyethylene (HDPE) Sized to fit head sizes 6  to 8 0 0