fits Harley Davidson H35 Photochromic ShieldReplacement face shield for Harley Davidson H35 Helmets. fits all size helmets from XS to 5XL The photochromic visor automatically darkens depending on the intensity of sunlight (= UV light). This makes both possible to ride in cloudy weather, in bright sunlight and in the dark without changing your visor. The photochromic reduces 100% of the UV rays that are equally harmful to eyes and skin. This visor makes it kind of a variable sunscreen for the