Oh, i actually created the armor shapes by layering pieces of craft foam together, then sticking the layers together with 3m super 77 spray adhesive. Then i used the same glue to stick vinyl on the outside of the craft foam to give it the color and the metallic look. The jawpiece itself though was actually wonderflex, along with the finger pieces. I actually painted the jaw pieces using gunmetal colored nail polish, lol. I wanted something thats safe to be on my skin, last thing i need is lead paint. Craft foam is actually a little bit heat moldable because its technically EVA foam, so i was able to shape it a little by using a heat gun.
Oh, this is actually vinyl on top of craft foam(eva foam) for most of it. I sandwiched together 2mm sheets of craft foam to get all the shapes into it, then covered it up with a layer of vinyl on top. Its great for an armor look that's a single color.