We introduced the Guardian Blade a few months ago and we are happy to say it quickly became one of our best Trust No One items. We love it for the stealth aspect and that there is nothing else like it available! The Guardian Blade is made in America using a high carbon steel. The blade is held onto the hat using high power magnets. It won't fall off! No one will know you're carrying a small blade in your hat. When you don't want to carry the blade, you'll want the optional Trust No One Bottle Opener! The Guardian Blade is available on most of our Trust No One hats.