United States
United States Air Force field-grade officer’s visor cap
The distinctive visor decorations are called either “cloud and dart” or “cloud and bolt” by some USAF personnel, although lower ranks tend to call them “fart and dart.” At any rate, field-grade officers (major to bird-colonel) have two clouds on each side, generals have three. Oddly enough, the Air Force continues to use black leather chinstraps on officer’s blue service caps, although the Bancroft catalog shows this particular model with a metallic strap, which informed sources in the Air Force tell me is dead wrong!