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, this set of Randolphs has anti-reflective coating on the lenses and bayonet temples designed to prevent headaches. (Their engineers calculated the exact angle of the temple bend to reduce pressure and to slide easily under a pilot headset or a helmet, if that's your thing.) They're cool.