iron cuirass

[nKante]

Now remember I said 'might' be an iron plate. To my eye, the dark area around the one warrior's torso seems to be an armored belly band. It could be part of the pattern on the robe, but I think I see a shadow underneath. It could be wishful thinking, but the shape, shadow and edging make me think that it is a separate rigid object and not fabric like his partners.