The Oakley Fuel Cell are the sunglasses of choice for top athletes like Bob Burnquist & Lance Armstrong. These guys don't just walk the path of life they make their own trail for other to follow. The Fuel Cell mixes clean lines with authentic Oakley wraparound style. The lenses of the Fuel Cell are cut from one single piece of Oakley's lens material " Plutonite", then they are placed in the frame of the Fuel Cell to maintain the original contours. Oakley Fuel Cell Lens: Dual lens Polaric Ellipsoid geometry Optical precision & impact resistance meet or exceed Z87.1 optical & basic impact standards UV protection of Plutonite lens material that filters out 100% of UVA/ UVB/ UVC & harmful blue light up to 400nm Glare reduction & tuned light transmission of IRIDIUM lens coating (optional) Available with Oakley authentic Prescription Lenses (+2.00 through -4.00 combined power). Oakley Fuel Cell Frame: Durability & all-day comfort of lightweight, stress resistant O Matter frame material Comfort & performance of Three-Point Fit that holds lenses in precise optical alignment Metal icon accents