I'm reading volume 1 of John Toland's outstanding books on Adolf Hitler. My copies were published in 1976 and are First Editions. The first volume covers the evil man's childhood (born 1889) through October 1938, right after the Munich deception regarding Czechoslovakia. Volume 2 goes from there to the end of the war.
I'm at the point when 1926 is closing out. Hitler is out of Landsberg Prison, which was like a vacation for him to write his unbelievable Mein Kampf. He has decided the Nazi party would no longer use illegal tactics to gain power and his speeches reflect "saving" Germany.
We are all familiar with the Nazis' Brownshirts, led first by Ernst Röhm, and their violent street attacks.
The actual shirts they became known for came about due to . . . simply price. These were shirts intended for German troops in East Africa, but there was a surplus, so they were on sale at wholesale prices! So the Nazis bought them cheap.
No special or superior reason for the brown shirts. Just got a great price on them.