Legionary Equipment During Reign of Marcus Aurelius

[Nathan Ross]

Why did the Roman army move to the Newstead variant in the second century?

Segmentata fragments and pieces from Leon, dating to the late 3rd century, appear to be both Corbridge and Newstead style. So the Newstead did not replace the earlier type(s). Why the Roman army might have used different types of segmented armour in the first place is a mystery, though!