Protective clothing advice.

So the status coup guy was talking while he was moving around about something he has to protect his head that he can then put a baseball cap over. He feels that with actual helmets ice is more likely to target shooting the person in the head. So im looking for advice along these lines on a few different basises.

• one is common things for someone who wants some protection when they go out and can't buy specific things
• two is suggestions for stealth armor like the status coup guy was sorta talking about. Being protected without it being obvious and possibly be made a target.
• finally just any advice around protection while being out that people can think of but I am only interested in defensive purposes so please for this thread limit it to protection although redirection is fine and appropriate.

These don't have to be taken together. free found or stealth that might cost, etc.