The semi-dress uniform ( Ausgangsuniform ), except in details, was the same for all ranks and was worn on off-duty or off-post occasions. It included the service cap, jacket, long trousers, and black low-quarter shoes. The single-breasted jacket was worn without a belt, with a white or grey-green shirt and a green tie. Officers were allowed to wear the jacket with a white shirt. During periods of warm summer weather, either the shirt and tie or the jacket may be omitted. For a while a double-breasted jacket could be worn as optional wear by officers and warrant officers.