Not everyone can pull off a handkerchief. Only pimps from the 70's and really really rich guys. Well both of those also usally have lot's of enemies. So this is a welcome addition to their wardrobe. A Bulletproof Handkerchief.
Made from military-grade kevlar, this little square will not provide as much protection as a full vest, but hey, when style and fashion are as important as your life, this works I guess.