Dirty Cats bandanas. Simple, hard wearing, and actually useful.
Wear it as a face covering when the road’s dusty, a neck gaiter to keep the wind off, or a head wrap to keep hair and sweat in check under a lid. Stuff it in your back pocket for easy access, wipe your hands, tools or goggles when things get messy.
No front fender on your chopper? Tie it between the front forks, just above the wheel, as a makeshift splash guard to take the worst of the spray off your face and body.
One bit of cloth, a dozen uses. Built for riding, not just for show.