Oakley - Mens Crosshair Sunglasses composite frame composite lens non-polarized Lens width: 61 millimeters Optimized peripheral vision and side protection against sun, wind and impact via 8.75 base lens curvature UV protection of Plutonite lens material that filters out 100% of all UVA, UVB, UVC and harmful blue light up to 400nm Glare reduction and balanced light transmission of optional Iridium lens coatings Durability and all-day comfort of ultra-lightweight C-5 alloy Comfort and performance of Three-Point Fit that holds lenses in precise optical alignment