I got an email from another person I reached out to regarding the source material for the cape skin. They also seemed quite confident that it was an industry standard pattern, and showed me a few pictures that looked promising. Really hard to tell based on the size and a few other factors, but very interesting and encouraging nonetheless. He has offered to send over a few samples, and they are in transit.
In other news, I have ordered the pattern for the body suit that I found online at Green Pepper. It gave me the rare opportunity to use the fax capabilities on my Multi Function Device. Fax... how quaint.