How well armoured was the Roman army?

[Quintius Clavus]

At the end of the civil wars, when Augustus was the man on top, he apparently made sure the extra armor from the demobilized legions was stored. There were warehouses full of armor and weaponry in Rome and other locations in Italy. With an army pared down to 28 legions, and auxiliaries not being so formalized as they later were by Claudius' time, much of the armor probably went to the legionary troops. Recruits for the legions were still primarily from the Italian peninsula in the early years of the Principate. They opened the warehouses or armories to equip troops raised in the emergencies of AD 6 and AD 9. There does appear to have been some difference between what types of armor or armament went to citizens as opposed to non-citizens because care was exhibited in making sure appropriate armor, etc. went to the appropriate men raised in those two emergencies.