Or if you want to get technical it's the patent for an "energy weapon protection device". It's basically conductive and non-conductive material in layers that prevent an electric charge from ever reaching the body -- because yelling "Don't tase me, bro!" just doesn't work. This stuff wouldn't be such a bad idea if you get tased on a regular basis, and if you had pants and a mask made out of the same material. While a jacket is a good start, you don't want to be zapped in the face and/or testicles because the coppers find out you're wearing a tase-proof jacket.