Pteruges can be considered as one of the main constants of what we could erroneusly define "uniformity" of the Roman Army. These stripes, more or less coloured, can be found in the roman archeology belonging to the whole roman history because pteruges are from the hellenic tradition and finishes only with the East Roman Empire.
First of all: the evidences
How to do a pteruge
The Jaime Castillo's version
Pic.1. Coloured Pteruges of the Prima Porta Augustus statue.