AF79D Bertoni the best Italian Sunglasses now available Model AF79D Frame Color: Black Lens Color: Smoke FM Features: Tipe of Lenses Anti-fog The anti-fog treatment ensured that your lenses never fog up thanks to the particular material used on the surface. Lenses Material It's the most used type of lens for sportwear becouse it has a hight protection against impact, 20 times stronger than crystal but weighs a third For more information please visit: http://www.bertonieyewear.com