Assembled in the USA. PATENTED HIGH DEFINITION OPTICS (HDO): Oakley's high definition optics provide superior optical clarity and razor-sharp vision at every angle as well as clarity and protection against impact and UV light OAKLEY PRIZM SAPPHIRE LENSES: These Prizm lenses are designed to enhance color, contrast and detail - coming in a range of color hues to match any style look. O-MATTER STRESS RESISTANT TECHNOLOGY: O-Matter Oakley frames are lightweight and durable for all-day comfort and protection.