Well, I did some quick searching on the internet, and found a picture someone had drawn up of a complete undersuit, and how it's supposed to look with the armor. In fact, I'm willing to bet this guy was or is a part of this group. I'm not sure - I found it on a Google search. (anyone know Tsuyosa?)
Anyone care to share their thoughts on the "ideal" material? I was thinking Spandex of some sort, or maybe use swimming suit materials (black and dark grey). The only problem is that stretch materials require a special type of sewing machine, and that is expensive to say the least? Will non-stretch fabrics work too?