While the pope, the head of the Catholic Church, literally wears multiple hats, the most iconic is the ceremonial mitre. A mitre is a white headdress made of two pieces of stiffened material sewn together at their bases that rise to a peak. They are worn by clergy in multiple denominations as well as by cardinals and bishops in the Catholic Church, but they are most associated with the ornately ornamented ones worn by the pope. The mitre is worn on special occasions, but the pope has another signature piece for more day-to-day wear. The zucchetto is the pope's skullcap, which is white to denote his rank as pope.