Frame Colour: Black Lens Colour: GreyLENSOakley SI Prizm technology uses formulated dye compounding technology, producing a color-tuned lens specifically for shootingLenses boost visual recognition of targets while blocking a variety of neighboring backgrounds such as dirt, trees and skyLenses allow the shooter to reduce eye fatigue and strain, while improve the ability to see reticle patterns under scope more clearlyAll available lenses are made from Plutonite, Oakley¿s high purity optical grade polycarbonateAll lenses are block 100% of UVA, UVB and harmful violet-blue light up to 400nm wavelengthAll lenses feature Oakley¿s HDO Optics with Polaric Ellipsoid TechnologySecure fit even under wet conditions via hydrophilic Unobtainium nose padFRAMEFull compatability with helmet-mounted night vision devicesFull compatability with MICH, ACH, CVC, PASGT, and Crye helmetsThin stem technology enables compatibility with over-ear hearing protection/commsSystem features quick, tool-free lens changeChemical and impact resistant O Matter frame materialUltra lightweight design (1.05-ounce total weight)