The polos was a special type of headdress worn in the Middle Euphrates and well attested in Mari. It was probably made from fabric, perhaps felt, laid over a light frame to create a voluminous, one-piece headdress with a flared-tiara shape and rounded at the top. Women wearing this headdress are often thought to be priestesses or court ladies who served in ritual ceremonies.

Statue dating from the second half of the 3rd millennium BCE. Alabaster. Excavation Parrot 1933. No. AO 18212. Department of Near Eastern Antiquities. Musée du Louvre.