Check out the Air Force’s old dress white uniform
When it comes to uniform variety, the US Air Force is definitely the least inventive of all the branches. The USAF carries the standard work option, OCPs, along with a more professional office version. When things get really fancy, the Air Force just ditches the flight cap and dons a white shirt instead of the blue – and that's about it. No swords for officers, no Class-As, no khaki, no whites.
But it wasn't always that way.
From 1947 to 1995, the Air Force used a white version of its dress uniform for those in tropical zones, an easy way to keep cool while maintaining a professional appearance when necessary. The first fully-Air Force regulated white uniform featured a white coat, shirt, and pants, but with black shoes and blue tie, along with blue mess dress cap (aka the "bus driver" hat), complete with Air Force "farts and darts" on the brim.
For social events, the hat was gone, white gloves were added, and black bow ties replaced the blue necktie. Eventually that gave way to a new uniform, once the Air Force was completely free of Army uniforms in 1959.
In 1959, this uniform became officially known as the Tropical Dress Uniform, which included a coat very similar to the blue coat of the regular Air Force and was made of a Dacron-rayon blend instead of the Army's cotton uniform. It was mandatory wear in tropical climates, but also at diplomatic functions, dinners, and anywhere else a white coat was the prescribed dress for the event. The blue mess cap was replaced by a white mess cap with an Air Force blue band around it and the black shoes were replaced with white ones.
By 1983, the Air Force introduced a new white uniform, the White Ceremonial Dress uniform, which was gone by 1989. Many aspects of the White Ceremonial Dress Uniform can still be seen on today dress blues, especially for officer ranks as the white ceremonial dress uniform was optional for lower enlisted personnel.