Blender Frame Constructed of ultra-lightweight hi-modulus C-5&8482, frame material with stress resistant O Matter® earstems. Wrapped, raked frame geometry with 8.75 base lens curvature for better peripheral coverage Comfort & performance of Three-Point Fit that holds lenses in precise optical alignment Unobtanium® earsocks inserts for added comfort Adjustable nose pads ensure a snug, secure fit Metal icon accents Lens Oakley HDPolarized &8211, Minimized glare via technology that produces the best polarized lenses on the planet (optional) Optimized peripheral vision & side protection of 8.75 base lens curvature UV protection of Plutonite® lens material that filters out 100% of UVA / UVB / UVC & harmful blue light up to 400nm Meets optical & impact requirements based on ANSI Z80.3 POL = Polished POLR = Polarized IRD = Iridium