The German army issued all soldiers a working uniform or Drillich. These uniforms were intended for fatigue duties where the soldier was likely to get dirty. They were issued in a natural off-white and a reed green variety. They were made from Herringbone twill (HBT) cotton/linen fabric. Initially intended for working, many troops found value to them in the field as a lightweight summer uniform. Sometimes they were altered with additional pockets and insignia. Subsequent to the development of the working uniform a summer weight uniform made from similar HBT cloth was created with a cut similar to the standard wool uniforms.
Work uniforms were used in combination with wool uniforms. It is common to see the white HBT trousers and the Field Grey Wool blouse being worn together during training exercises. Men whose primary responsibility was technical, such as mechanics or bridge builders wore these uniforms almost to the exclusion of others.
These photographs were taken from a number of books, online sources, and auction sites. They are presented here for educational purposes.