It's not a fedora and it has been around since before the Golden Age, but the Cavalry hat lives on. Most peple outside of the Cav community don't know much about the Stetson because it technically isn't written into any regulations. It is worn by Cavalry Scouts (19D) and Air Cavalry across the Army, and some Cavalry units allow all members to wear it (1st Cavalry Division, 3rd Armored Cavalry Regiment, etc.) It is called a Cav hat, or a Stetson (because so many are Stetsons) It's not something we are allowed to wear all the time. It's worn to Change of Commands (when a new commander takes over a unit), beer calls (a social gathering at the end of the duty day where we all go down to the O-Club and drink beer/socialize), dinings in and out, military balls, weddings, hails and farewells (worn in civilian clothes), etc. Your hat is not properly broken in until the first beer call when it is turned over and filled to the brim with beer. At that point, you have to down it all before it soaks through and you get extra points if you take it all in one go and don't come up for air. Well, there aren't really points you just won't be harassed as much. If you have a ball before a beer call, then you break your hat in with the grog (a far nastier compilation of alcohols). If you're an alcoholic, you do it at both. The crossed sabers are the branch insignia for the cavalry. In a cavalry division, many branches will put their own branch insignia above the crossed sabers (to distinguish them), or use their own branch insignia in the case of the infantry, artillery and MP corps. Only the Air Cav and the scouts keep just crossed sabers (which is not technically authorized; Air Cav falls under aviation and Cavalry Scouts are part of the Armor branch). Numbers above the crosed sabers are for your regiment. My 7 is for 1-7 (of Custer's fame). Rank is worn above the insignia. Unit crests are often placed on the back of the hat to pay homage to the units you have served in, as well as your current unit. The acorns, originally said to help keep the Trooper awake by slapping the brim of his hat while he rode his horse, come in a variety of colors. Commisioned officers (Company Grade) wear the black and gold bands while Field Grade and higher wear a solid gold band, warrant officers (WO1-CW3) wear silver and black while CW4 and CW5 wear solid silver, and enlisted Troopers wear their respective branch colors. The yellow, most commonly seen, is the color of the Cavalry Scout. A knot is placed in the chord for each combat tour. Whenever you wear your Stetson, you can also wear your spurs. Silver spurs are earned on a spur ride, which varies from unit to unit. It can be anything from a test of endurance lasting several days, to a test of knowledge. Most units have a mix of the two. Golden spurs are earned in combat. The spur is turned upright on unmarried Soldiers and down when they are married. This is done, supposedly, as to be less painful to the wife (I will let you figure that one out) Cav hats are not issued, it's something you pay for out of pocket - some units have sponsors pick them up for newer members of the unit but this is generally not the case. There is no allowance for it, just an investment in unit pride.