The cassock or soutane is a Christian clerical clothing coat used by the clergy and male religious of the Oriental Orthodox Churches, Eastern Orthodox Church and the Catholic Church, in addition to some clergy in certain Protestant denominations such as Anglicans and Lutherans. "Ankle-length garment" is the literal meaning of the corresponding Latin term, vestis talaris. It is related to the habits traditionally worn by nuns, monks, and friars.
First native Catholic priest in the Belgian Congo, wearing a Roman cassock with the standard 33 buttons. Early 1900s.
Cardinal Prospero Caterini 1795–1881
Cardinal Tarcisio Bertone wearing a tropical white cassock trimmed in cardinalatial scarlet in Santo Domingo, Dominican Republic
During procession the cassock is prescribed for high clergy
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.
On the right, an example of the full collared shirt and cassock; on the left, a clerical shirt that could have a tab collar inserted.
The rabat, worn until the early 20th century.
Anglican cassock, rochet, chimere and scarf.
The ruff, as worn by a Danish Lutheran bishop.