The Oakley Field Jacket Sunglasses are perfect for you whether you're trail running, wheeling down a mountain or turning the pedals on the road. This sunglass offers the ultimate in performance for any in-the-field excursion. Field Jacket comes optimized with Advancer technology, an innovation that instantly opens airflow to combat fogging and overheating. Oakley Field Jacket Sunglasses Features Advancer™ nosebridge positions the frame to block light while opening airflow to combat fogging and overheating Increased FOV Full frame design allows for Rx compatibility Interchangeable temple lengths for improved helmet compatibility Durability and all-day comfort of lightweight O-Matter™ frame material No-slip Unobtainium™ nosepads: Increase grip with perspiration Three-Point Fit: Comfort and performance that holds lenses in precise optical alignment Frame suitable for medium to large faces Prizm™ lenses enhance color, contrast and detail for an optimized experience HDPolarized: Minimizes glare via technology that produces a comprehensive, single-layered lens (optional) Plutonite™ lens material offers top UV Protection filtering 100% of all UVA, UVB up to 400nm and some of harmful blue light Glare reduction and tuned light transmission of Iridium™ lens coating Optimal precision and impact resistance that meet or exceed ANSI Z80.3 optical and impact standards HDO™ Optics for crystal clear vision and impact resistance Available with Oakley™ Authentic prescription lenses