Whatever situation you are shooting in, whatever nature throws at you, Oakley Standard Issue Prizm? Lens Tints enhance the adaptability and acuity of the human eye while providing protection and comfort. Oakley Standard Issue engineered an array of Prizm? Contrast lenses providing a marksman with viable lens alternatives in different field conditions. The lenses strategically block wavelengths along the color spectrum in order to MAXIMIZE CONTRAST between colors, providing the user with REDUCED EYE FATIGUE and ENHANCED VISION. Oakley Standard Issue Prizm? lenses are engineered to fine tune the users visual contrast and depth perception. Making it easy to identify targets while reducing eye fatigue for better focus and performance when it counts. Features:

Oakley SI Prizm technology uses formulated dye compounding technology, producing a color-tuned lens specifically for shooting

Lenses boost visual recognition of targets while blocking a variety of neighboring backgrounds such as dirt, trees and sky

Lenses allow the shooter to reduce eye fatigue and strain, while improve the ability to see reticle patterns under scope more clearly

All available lenses are made from Plutonite?, Oakley?s high purity optical grade polycarbonate

All lenses are block 100% of UVA, UVB and harmful violet-blue light up to 400nm wavelength

All lenses feature Oakley?s HDO? Optics