Clerical clothing is non-liturgical clothing worn exclusively by clergy. It is distinct from vestments in that it is not reserved specifically for use in the liturgy. Practices vary: clerical clothing is sometimes worn under vestments, and sometimes as the everyday clothing or street wear of a priest, minister, or other clergy member. In some cases, it can be similar or identical to the habit of a monk or nun. In modern times, many Christian clergy have adopted the use of a shirt with a clerical collar; but the use of clerical clothing is most commonly among Catholic, Anglican, Oriental Orthodox, and Eastern Orthodox clergy. Catholicism (Latin Church) In 1215, the Fourth Lateran Council made it mandatory for all the Christian clergy to wear distinctive dress. Its purpose was not necessary to elevate the status of the Christian clerics; it was intended that they would catch the public eye if any member of the clergy is seen on the street. However, the rules at the time were not the same as the modern rules, and the rules vary by jurisdiction. Cassock: A long-sleeved, hoodless garment. Depending on the climate it can be made of very lightweight material or heavy wool. In tropical climates white is worn. This is the norm for secular clergy and members of religious institutes. Some religious societies such as the Jesuits and Redemptorists wear their own style of the cassock. Monks and friars wear a habit that can differ considerably from the cassock. Cassocks are generally ankle-length. The color is black for priests, black with purple piping for canons, black with magenta piping for monsignors, black with amaranth red piping for bishops; and black with scarlet red for cardinals. The Roman Pontiff wears a white cassock. Monsignors, bishops and cardinals have what is known as a "choir cassock" for liturgical occasions but this is not worn for everyday wear. Ferraiolo: A full-length cape reaching to the ankles. This is only worn with the cassock on formal white tie or Morning dress occasions. Cape: A covering for the cassock in cold weather. Greca (clothing) (douillette): An overcoat covering the cassock. Hat: Zuchetto or biretta, depending on circumstance. Clerical collar: There are a variety of options for daily clerical attire, all involving the use of a clerical collar: Collarino (Tab Collar): This is probably the most common type of shirt and collar among Roman-rite Catholic clergy. It resembles a