Illustrations of Sassanid Persian Clibanarii

[Urselius]

I was thinking of the Julian description, the others, as you say, use very general terminology for the armour of the torso.

In response to Dan, the mail-clad knight also had a damn-great shield, which was his primary protection from lances. The Roman cataphract does not seem to have had a shield, which would make him much more like a 15th century man-at-arms, whose plate armour had made a shield superfluous.