The woman assumes Ihram in any clothing that she wishes

Question:

Is it permissible for the woman to assume Ihram in any clothing that she wishes?

Answer:

Yes, she may assume Ihram in whatever she wishes. She dose not have any specified clothing for Ihram as some of the common people think. However, it is better that her Ihram be in clothing that is not beautiful and that does not attract gazes, because she will be mixing with the people. Therefore, her clothing should be clothing that does not attract the gazes and that is not beautiful. Rather, the clothing should be plain clothing that does not contain any temptation. In reference to the man, it is better for him to assume Ihram in two white garments- a lower waist garments and an upper garments. If he assumes Ihram in something other than the two white garments, there is no harm in that. Indeed it has been confirmed from the messenger Sallallahu alaihi wasallam that he performed Tawaf while wearing a green Yemeni mantle. It is also confirmed from him that he Sallallahu alaihi wasallam wore a black turban. Thus, the conclusion is that there is no harm in the person assuming Ihram in a garment that is not white.

Source:
Shaykh `Abdul-`Azeez Bin Baz
Fatawa Islamiyah Darussalam Vol:4 page no.132