"It's a very expensive full-body garment that defends the wearer against a certain common type of lethal or permanently disabling weapon," he says. "They can be made to fit under other clothing, but it's usually pretty easy to tell who's wearing one, if you know what signs to look for. You might have an easier time than usual coming up with a shield net and set of clothes that worked well together. And it wouldn't cost much to produce a second set with no hood for when I want to appear marginally more trusting."