The OAKLEY Replacement Lens Airbrake Prizm Sapphire Iridium features Prizm, a revolutionary bioengineering technology that optimizes lenses for specific sports, significantly enhancing vision and contrast, especially in the snow. Prizm lenses cover a broader spectrum of light conditions than traditional tints, eliminating the need for lens changes even when conditions shift. The human eye can perceive the finest details in particular areas of the light spectrum; however, these details are often lost in flat, low-contrast lighting, such as on snowy terrains. Prizm lenses break light into individual colors, amplifying contrast-relevant shades and filtering out the rest. Similar to how an equalizer regulates high and low tones, Prizm lenses enhance contrast-relevant colors while filtering out the rest. The result is clear vision and sharply defined details, even in flat light conditions. Perfect for various off-road activities, this replacement lens brings superior clarity and detail to your outdoor adventures.