hairband
/ˈheərbænd/Definitions
1. noun
a wide, flat strip of fabric worn around the head, typically decorated and often worn at the back of the head, by women or men.
“She wore a colorful hairband to the music festival.”
2. noun
a type of metal band worn around the head or wrist to hold long hair back.
“He used a hairband to keep his ponytail in place.”