What do men in Oman wear on their heads?

In Oman, men typically wear a traditional head covering called a "kumma" or "musar". The kumma is a white cotton cloth that is wrapped around the head and secured with a cord. It is often worn with a small, round cap called a "taqiyah" underneath. The musar is a larger, rectangular piece of cloth that is also wrapped around the head but is not as common as the kumma.