band worn around the head, made of various materials, typically worn to keep the hair in place, for decorative purposes, or as a sign of status or rank.
Alice bands

A headband (also known as a headwrap) is an accessory that is made to fit over or around the head, usually to hold hair away from the face or sweat out of the eyes. It can be made of many different materials, like plastic or elastic fabric. They come in many shapes and sizes and are used for both practical and fashion reasons.