I love the way the wind hits my unshielded eyes like a sheet of abrasive sandpaper, said no one ever. Keep your eyes safeguarded against the elements while you're biking, running, or golfing, with the protective Flak 2. 0 Polarized Sunglasses. Built with polarized lenses, the Flak 2. 0 lenses are optimized with High Definition Optics. They offer paramount safety, comfort, and performance by filtering out 99% of reflected glare, but without the haze and optical distortion that often comes hand in hand with conventional polarized lenses. The enhanced lens coverage consequently enhances your peripheral view and further shields you from sun and wind. Additionally, the O Matter stress resistant frame material is ultra lightweight and durable while the Unobtanium earsocks and nosepads ensure that your specs stay in place, even in the event that your perspiration should start to feel like the floodgates of the Hoover Dam. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer andor birth defects or other reproductive harm.