Its guarantee a natural appearance removing imperfections due to the corrective powers of the lens. Its are produced through the use of a special monomer situated between highest index (1.74) and the high index (1.67) ensuring higher optical quality compared to the first and a greater attention at the designs respect to the second. Dai guarantee the fast delivery service for all Fly Air 1.71 of stock with oleophobic AR treatment with a warranty of 3 years called GREAT .TECH, thanks to the wide range available in our warehouse and