A friend of mine had something similar[0] on his car (it was a Lamborghini) to avoid his car being identified in images online. I'm sure it's not hard to have hoodies and tee shirts with this integrated. It's not visible to the human eye so unless you hold up a camera, it'll not be a problem. That said, this might be an issue if you visit a bank or airport or something along those lines. [0] - https://www.youtube.com/watch?v=Z2oYReMaS4A