What is a "bandana"?

A bandana is a square piece of fabric that is typically made of cotton and worn as a head covering, neckerchief, or accessory. Bandanas often feature colorful patterns or designs and are commonly used as a fashion accessory, particularly in Western or bohemian styles. They can be folded in various ways to create different looks, such as tied around the head or neck, or folded into a triangle and worn as a doo-rag. Bandanas are also commonly used for practical purposes, such as to protect the face from dust or sun or to wipe sweat. Additionally, bandanas have been used historically as a means of identification among different groups, such as gang members, or to signal a particular message, such as solidarity or affiliation.