All the Western coronation vestments are ultimately derived from the Byzantine use. The imperial Byzantine vestments[163] seem to be elaborations of the older official Roman dress. They appear to have become more or less fixed by the ninth century, and comprised the following:
1. The purple Buskins or Leggings.
2. The scarlet Shoes, originally a senatorial badge.
3. The Tunic or χιτών, probably white.
4. The Dibetesion or Sakkos, a gorgeous tunic very much like a dalmatic.
5. The Loros or Diadema, which was originally a folded toga picta, but became a long embroidered scarf folded about the neck and body with one end pendent in front and the other over the left arm.
6. The Chlamys, or imperial purple, by the thirteenth century a great cloak powdered with eagles and fastened on the right shoulder. In the time of Constantine Porphyrogenitus the Loros and Chlamys were not worn together, perhaps for the sake of convenience, but they were so worn together in the thirteenth century, though by the fourteenth century the Chlamys was again abandoned and the Sakkos sufficed for the imperial purple.
There can be no doubt that the Western regal and imperial vestments are derived from the Eastern robes, for there is a close similarity between the two, though in process of time some of the least convenient have been gradually abandoned.
The English vestments are as follows[164]: