These were originally designed for the U.S. Navy as submariner glasses... the P3 shape was a favorite of Arthur Lee and Gregory Peck in To Kill a Mockingbird, and it’s one of ours, 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. They're cool.