Oakley Flak Jacket XLJ Sunglasses Some shades protect your eyes. Others protect your image. Oakleys do both! Sport professionals demand nothing less than the best; and Oakley has answered their challenge for decades. World-class athletes have driven them to create innovation after innovation; including interchangeable lens designs with unbeatable optical clarity. Flak Jacket sunglasses take that to the next level with the latest in performance technology. Oakley Flak Jacket XLJ Sunglasses feature: Capability to change lenses in seconds and optimize vision in any environment (additional lenses not included) Durability and all-day comfort of lightweight; stress-resistant O MatterA frame material Optimized peripheral vision and side protection of 8.75 base lens curvature Comfort and performance of Three-Point Fit that holds lenses in precise optical alignment Metal icon accents Optical precision and performance that meets all ANSI Z87.1 standards Impact resistance that meets all ANSI Z87.1 standards for high-mass and high-velocity impact UV protection of PlutoniteA lens that filters out 100% of UVA / UVB / UVC & harmful blue light up to 400nm Glare reduction and tuned light transmission of IridiumA lens coating Adapt to variable light conditions with A"TransitionsA SOLFXATMA" photochromic lenses UnobtainiumA nose pad options for customizable and comfortable secure fit -two sizes included with every frame Protective sports-specific Oakley Soft Vault included Oakley Sunglasses. The Best of Comfort; Clarity and Durability!