Covering the body against various natural factors (heat, coldness, and wind) as well as doctrine, cultural, and social factors has been prevalent since old ages and with the passage of time and changes of conditions it has undergone many alterations and transformations. Iranian clothing in Parthian period following the conquest of Iran by Alexander the Macedonian and due to the effects of Hellenistic beliefs and culture has been transformed in a way that in addition to protecting the body against the natural factors and observing ethical and cultural issues, aesthetical element, shape, and color of garment have been highly considered too. With respect to the wide territory of the Parthian dynasty, this period are divided into two extensive groups of the eastern and western territories which are different to some extent from the artistic aspect. Sistan, in the east of Iran, by having abundant works remained from Parthian period, particularlyPalace of Koh-e Khajeh,represents the special Iranians' culture of clothing in the eastern territory. Through investigating the frescos in the Palace of Koh-e Khajeh, one can realize the different types of common clothing in this region and the neighboring areas during the Parthian period; and also, we can specify the extent to which Greek clothing has affected the clothing during the Parthian period and then it helps to differentiate it from the local and native garments. Investigating and study of frescos in the Palace of Koh-e Khajeh suggest that its inhabitants' clothing in addition to imitating the color and form of Greeks' clothinghas been also influenced by natural and local factors of the region and religious beliefs.
