headband
/ˈhɛdˌbænd/
noun
- A strip of fabric or other material worn around the head, often to keep hair off the face or to absorb sweat.
- She wore a bright pink headband to keep her hair out of her eyes during the race.
- He put on a thick wool headband to keep his ears warm in the winter.
- The tennis player adjusted her headband before serving.