These have been standard issue to the U.S. Military since the eighties, and they're almost standard issue for us, too. Designed by engineers and handcrafted in Massachusetts, every set of Randolphs has anti-reflective coating on the lenses and a lifetime solder joint guarantee. It's actually the only metal eyewear company to manufacture everything on US soil. The AGX (for "American Gray") lenses on these have a greenish tint, which enhances yellows and green light to reduce eye fatigue... they're excellent for long-term wear and winter driving. They're cool.