Good point. However, the balance of the text is more alarmist than rational.
I suspect that the target market is unlikely to read the text closely enough to distinguish, for example, between correlation and causation ( http://www.bellyarmor.com/radiation/health-risks/autism - note the graph correlating cellphone subscribers and autism case).
And while I might want to credit them with presenting technical information and research, this is more likely intended to obsfuscate and alarm with scientific/statistical terms than to clarify...
Let's see; http://www.bellyarmor.com/faqs
"How do Belly Armor products work?
Without getting too deep into the details, RadiaShield® fabric shields against everyday radiation by neutralizing incoming electromagnetic waves - similar to how noise canceling headphones work with sound waves or how a grounding wire neutralizes an electric current."
No, noise cancelling is active - Belly Armor doesn't emit opposite phase radiation to cancel the radiation.
No, a grounding wire grounds an electric current to the ground - Belly Armor isn't grounded.
However, if at some point in the future, significant correlations are proved, I'll eat my cynicism and hat.