Sunglasses MH900 Photochromic (CAT 2 /4) Full Lens - Volcano Grey

An anti-UV material, but what for?To protect your eyes from an invisible danger: UV rays.UV radiation is always present, in winter or summer, on sunny or even overcast days, and it can be harmful to your eyes and the area around them.To protect your vision, the lenses of our sunglasses are made from polycarbonate mixed with anti-UV material that protects you from the sun's harmful rays (UVA and UVB).

Classification of tinted lenses in accordance with ISO 12312-1: - Category 1: lightly tinted lens for reduced sunlight. - Category 2: medium tinted lens for medium sunlight. - Category 3: dark lens for strong sunlight (sea and mountains). Between 82% and 92% of visible light absorbed- Category 4: very dark lens, for exceptional sunlight (high altitudes). Between 92% and 97% of visible light absorbed

Our lenses are made of polycarbonate, a material that's highly resistant to impact but which is sensitive to scratches.Please note that even if your lenses are scratched, the UV protection does not diminish - the mirror effect is purely aesthetic.The same applies to the colour of our sunglasses.Whether they're grey, brown or coloured, you can choose your glasses according to your taste, and you'll be protected whatever the colour.