Chlamys
The chlamys (Ancient Greek: χλαμύς, romanized: khlamús; genitive: χλαμύδος, khlamúdos) was a type of ancient Greek cloak. It was worn by men for military and hunting purposes during the Classical, Hellenistic and later periods. By the time of the Byzantine Empire it was part of the state costume of the emperor and high officials. It survived as such until at least the 12th century.
The ephaptis (Ancient Greek: ἐφαπτίς, romanized: ephaptís) was a similar garment, typically worn by infantrymen.