p>Oakley's Flak Beta
offers the benefits of performance eyewear including lenses with HDO® Technology and fine-tuning PRIZM™ technology. Swap out the lenses to take full advantage of their High Definition Optics® with ANSI Z87.1 standards of clarity and impact resistance. The wide peripheral view stays sharp with XYZ Optics® while the contouring improves side protection against sun and wind. The Unobtainium® nosepads increase grip even while perspiring for a no-slip grip. The Three-Point Fit holds lenses in precise optical alignment while eliminating pesky pressure points.