This cap is the kind you need for matching up with an Infantry enlisted tunic, including a Waffenrock. This is the service cap, sometimes referred to by collectors as a visor cap.

NCOs wore silver or matt tress around their shoulder straps and their collars, with certain exceptions. Rank will be determined by the shoulder straps (term for enlisted) or boards (term for officers). Army tunics will have rank on the shoulders. Branch coloring, or Waffenfarben, are determined on the strap/board edges and the collar tabs (litzen). Luftwaffe uniforms have rank on both their collar tabs and their shoulder straps/boards. The Waffen-SS has rank on one collar tab and their shoulder straps/boards, but the Waffen-SS didn't have Waffenrocks. They did have walking out uniforms, which were well-made and used while on leave.

Study your book, young man!

Bill