To which part of the Kingdom does these traditional costumes belong?

The Sulaym are related to the Harb, and led a semi-settled life near the Red Sea coast as fishermen, traders and herders.

Photo credit: http://www.mansoojat.org/costume20.html

Najd and Central Region thobe in chiffon embroidered with sequins and gold thread.

Photo credit: http://www.mansoojat.org/costume20.html