Product details:

Customize the look of your Flak 2. 0 XL eyewear and get the best optical performance for where you use it most. Prizm replacement lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility with the impact resistance and 100% UV filtering of Oakley's High Definition Optics (HDO).Oakley logo details
Prizm is glass technology from Oakley
Which is optimised for special Sports and conditions
HDO – numerous patented technologies, in optical clarity