Don Quixote is emblematic of lost causes, a return to chivalry, pursuing a cause when no one else believes. He imagined the windmill to be a monster with whom he did battle.
This embroidered patch has Velcro hook backing for attachment to any Velcro loop backing on hats, helmet, plate carriers, vests, backpacks and bags, and comes with a matching Velcro loop piece you can sew onto any fabric not already equipped.