Stealth Bomber Jacket.

Don’t give Musk the idea of the CyberShirt.

Funnily enough, indoors, this would probably make you more visible as the only area with no reflections. Stealth works outdoors because the sky does not have a radar return.

My understanding is that this catches disruptions between devices and router. I don’t think this would work. I would say you should instead sell a “bracelet” with “ancient Himalayan Salt” embedded into the silicone to absorb and cancel the tracking. It would probably sell a ton! Obviously wouldn’t work but $!

You can buy faraday bag cloth. It’s expensive.