Photochromic cycling sunglasses with anti-fog lenses that change colour intensity automatically depending on the brightness and UV light, guaranteeing an excellent visual performance. The Sunsensor Photochromic Antifog Lens from cat 0 to 3 reacts consistently to light and UV rays - they darken from category 0 transparent (indoor, foggy days, bad weather) to grey category 3 sun tint (outdoors, high brightness), this lens adapts itself to changes in light.
All the lens 100% UV400 protection coating, blocks 100% harmful UVA & UVB Rays. VLT from 85% (when clear) to 15% (when smoked). You can wear your tech sunglasses all day, don't need to change your lenses according to light conditions. Lenses are decentered in order to avoid any optical distorsion.
The photochromic lens protects the eyes when out in the sun or in any weather condition. Plus the lens is treated with a special resin which removes the condensation which forms on the surface of the lens when passing from hot to cold.
The sunsensor lens can change colour in only 8 seconds when passing from light to dark. The frame of the Bertoni Photochromic eyewear is in nylon so they will never change shape and are highly resistant to impacts.