Aerodynamic engineering makes this speed specialist the ultimate eyewear for cycling, running and beyond. An open-edge brow maximizes the upper field of view, and our new Advancer nose bridge instantly opens airflow to combat fogging and overheating.• Brow-less design allows for improved upper field of view• Advancer™ nosebridgepositions the frame to block light while opening airflow to combat fogging and overheating• Interchangeable temple lengths for improved helmet compatibility• Durability and all-day comfort of lightweight O Matter™™frame material• No-slip Unobtainium® nose pads and earsocks:Increase grip with perspiration• Three-Point Fit: Comfort and performance that holds lenses in precise optical alignment• Frame suitable for medium to large faces• Available with Prizm™ lenses to 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