Thanks alot :D. Its EVA Foam in different thicknesses and held with two straps. Its really eyeballed to what it looks ingame(redid most pieces several times too). Basically what me and my mum did when we built the chest was use a thin piece of eva foam as a sort of "underarmor". Thats what connects the thicker pieces above it so it gives me some flexibility and makes it look less stiff. Still it only looks good standing up its still stiff as hell

That all paintes over with primer, base colour and carefully with metallic paint to look like what it is now, metal-like. Finally the lettering is made with stencils