Leather Cuirass Lorica Musculata, I used to think no way but

[Celtic505]

So than perhaps what Dan is saying could be true afterall. Perhaps what is being shown in the sculptures is not armor at all, but designed to look like armor like the example with Caracalla. Perhaps before getting their portraits they had special linen cuirass' made? Who wants to stand in front of a sculptor for hours all day in heavy bronze armor, when you don't really need the protection? Perhaps on the statue of Antoninus, that is his faux-armor beside him and not his subarmalis?