The removable liner in your Gringo/Gringo S helmet can get grungy after heavy use Keep your lid fresh and clean with a new liner and cheek pads One interior comfort liner and two cheek pads are included with each kit Installation is easy; ; ; Note: Never throw your helmet's liner and cheek pads in the washer or dryer. Instead, carefully remove the pieces and hand wash them in the sink with mild soapy water. Let them air dry 24 hours before reinstalling them to avoid dampness or mildew.