A person’s clothing tells us a lot about his or her role for others: we recognize a policeman by the uniform, a nun by her veil, a pupil by her apron... We could find many examples! The Pope too has a special robe, and it is unique in the world. It's called a cassock, and it is white. The Pope represents Jesus, and white is a symbol of innocence, purity, and charity.

Have you ever seen the Pope celebrating Mass? You might have said, “What’s he wearing?!” That strange pointed hat, the cross he uses as a stick... What do they represent?
The Pope's clothing is that of a bishop. In fact, the Pope is the Bishop of Rome. Every diocese has a bishop: have you seen the one of your diocese?
The hat is called miter, and the stick with the cross is a ferrule.