Taser proof hoodies
indiegogo.com
indiegogo.com
But is there though? What evidence is there that EM radiation in the microwave bands is bad for you? Also "kinetic energy" means being hit by things, which I don't think that a hoodie will fix. And thermal energy definitely isn't something we need to protect against (unless you're jumping into ovens or something).
Serious question: Is this actually real? Because I can't believe that it is.
To answer your question though, yes it would have to. In order to dissepate electricity it would need to be conductive and a Faraday cage is any closed conductive surface (though in practice you can have semi-open conductive surfaces just as well).
I hope this is simply marketing people screwing up. If they seriously believe in this...