Photochromic Pinlock lens for ARAI VAS-Z visors. From clear to lightly tinted visor in seconds. The Pinlock Protec TINT insert lens reacts to UV light by automatically darkening its tint color while keeping the visor fog-free. The Pinlock® visor insert is made from a material with moisture-absorbing properties that reacts like a sponge & effectively absorbs moisture. The inside of the Pinlock® insert is equipped with a silicone edge & forms an air cushion with the visor, which then acts like a double-glazed window. The layer of air trapped between the visors acts as an insulator for the internal temperatures inside the motorcycle helmet. The Pinlock® visor is the most effective, durable & affordable anti-fog solution on the market. Example illustration Here you find some information about Pinlock Anti-Fog lenses