The Ihram and its clothes is the first of the actions that the disciple of Hajj or Umrah does. And many of the rulings are related to this Ihram. A woman can wear whatever she wants from black or green or other colors, except imitating the men in their clothes. Also, she is not allowed to wear the (Niqab and gloves) during the Ihram .The God Almighty did not specify the women in a garment like a man, he must wear (Izar and Robe). The climate of the holy city of Makkah is not hidden from us, and the role of heat, which completely controls the nature of the weather in it, becomes clear . It is crucial to have sustainable designs that fulfill the functional requirements of Ihram Women Clothes . Given the importance of this topic, the researchers did not find a specialized study that dealt with the Ihram Women Clothes to find solutions to the problems she faces while performing the rituals of Hajj and Umrah. This study aimed to producing sustainable designs for the Ihram women clothes to conform the functional requirements . And get to know the opinions of specialists towards the designs implemented for the Ihram women clothes conform to the functional requirements . Also, knowing the opinions of female consumers towards the designs implemented for the Ihram women clothing to be compatible with functional performance .The researchers followed the descriptive and analytical approach, in addition to the applied study, through designing and implementing samples for sustainable designs for the Ihram women clothing , fulfilling the functional requirements .The research sample includes the research sample consisted of (162) women, divided into (97) women, who answered the opinion poll . Which varied their nationalities between (Egypt, Saudi Arabia, Yemen, Hadramout, Pakistan) and the number (65) consumed to know their views towards the implemented designs .The results showed that specialists and consumers agree that Design No. 2 is the best in achieving functional and environmental aspects (sustainability). The study presented a recommendation to conduct more research to experiment the designs during the Hajj season and to actually measure the extent to which it fulfills the functional requirements of women .