The M43 field cap or "Einheitsmütze" was a cap used by the German Wehrmacht and SS, during World War II. The design of the fieldcap was based on the German Gebirgsjäger's ski cap, the only differences being the bill was slightly extended and the top panel of the hat had a smaller circumference, giving it slightly sloped in sides. This design and its successors that are still in use today are the German counterparts to the American patrol cap or utility cover