From my Samples, Singulars, and Somethings Completely Different collection -
A mid 15th century half-hauberk / voider jacket, size xl. I bought this for myself, but it is just a bit too small for me. Should fit a 42-48" bare chest plus arming clothes (I'm a 50" bare). Mild steel, 9mm flat rings, dome riveted.
This is the original / inspiration: wounded knight, circa 1450 - 1455, by Pisanello.