German officers tricot breeches Generals trousers Was made from fine tricot wool with field grey material. Did have a couple more colors but cant find the article again.
Osprey Men-At-Arms series has a lot of great info on German uniforms including generals uniforms and such. Ive been rereading these and I think I have around 24 or so books from the series--mostly WWII German stuff. If you need anything specific? please let me know and I can probably tell you what you want to know.