They come as Legionaries, Auxiliaries & archers (in order, left to right in the photo:)

The figures are pretty good & match my existing Italeri & Newline L. Roman infantry well.
The latter two categories are easy - the standard embroided tunic.
The legionaries less so. There is some sort of chest protection & pteruges around waist & arms modelled. What is this?
I'm wondering if this is supposed to be the leather armour that Phil Barker suggests - an idea now much disputed.
There is some talk of them wearing a muscle cuirass....this doesn't look like that and certainly not mail.
Any thoughts?
donald