I was even more amused by the nonsensical explanation they give after that phrase. Apparently their Faraday cage blanket works "similar to how noise canceling headphones work with sound waves or how a grounding wire neutralizes an electric current."

So apparently their Farady cages work like two completely different physical phenomena, neither of which is anything like a Faraday cage. I'm also amused by the fact that if it really works like noise cancelling headphones, belly armor actually emits radiation!