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. Two included lengths of interchangeable temples make Flight Jacket compatible with helmets. PRIZM™ Lenses Prizm™ is a revolution in lens optics built on decades of color science research. Prizm™ lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility. Features: Brow-less design allows for improved upper field of view Advancer™ nosebridge positions 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® nosepads 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 Optimal precision and impact resistance that meet or exceed ANSI Z80.3 optical and impact standards Frame color: matte navy Lens color: prizm road Fit: standard Light Transmission: 20% Light Conditions: Medium Light Contrast: Increased Base Lens Color: Rose