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. Key FeaturesBrow-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 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 Eyewear Buying Guide