The German army uniform where standard per army and most had removable shoulder boards. These shoulder boards or Schulterklappen where sewn from wool with a coloured piping on the side to designate the specific branch the soldier was serving in. At first shoulder boards where still manufactured with wool piping but around 1941 they switched to rayon piping. Further in the war these shoulder boards became more simplified and less well made. A lot of different shoulder boards where worn in the German army between 1933 and 1945 and they came with different sizes, colours, piping and ranks.
Piping: White for Infantry or Infanterie
Branch: Infantry or Infanterie
Rank: EM which stands for Enlisted Men
Wool: Bottle green on top, gray underneath.