Chimere

A chimere (/ˈtʃɪmər/ CHI-mər, or /tʃɪˈmɪər/ chi-MEER) is a garment that was formally worn as part of academic dress, or by Anglican bishops in choir dress.

A descendant of a riding cloak, the chimere resembles an academic gown but without sleeves, and is usually made of scarlet or black cloth. In modern English use the garment is worn as part of the ceremonial dress of Anglican bishops. It is a long sleeveless gown of silk or satin, open down the front, gathered in at the back between the shoulders, and with slits for the arms. It is worn over the rochet, colored either black or scarlet (a combination referred to as "convocation robes").

Read more about Chimere:  Ecclesiastical Use, History, Academic Use