The Barrier Brazen frame style is comparable to Nike Brazen which has been discontinued by the Manufacturer. Our X-Ray Radiation Leaded Eyewear is made with the most durable approved frames and Corning leaded glass lenses from the world's leading manufacturer Corning SAS. Corning leaded glass lenses use ultra-refined lead oxide, for unsurpassed protection, quality, and optical clarity. Corning lenses provide up to 20 percent more light transmission than any other leaded glass lenses. Our X-Ray Radiation Leaded Eyewear comes standard with .75 Pb Lead Equivalency, which will block 99.9 percent of the scatter radiation generated during fluoroscopic procedures. Our Leaded Eyewear is manufactured by skilled opticians in the U.S.A. utilizing state of the art robotic free-form lens surfacing technology which allows us to provide the highest quality glasses available on the market.