Sufipath

A requirement for foreign women dress-code in public sanctuaries along the Sufipath is that legs should be covered down to ankles. arms should not be bare and hair should be covered with the ‘roosari’, the scarf in the Persian language.

The exeption in these rules are the shrines and sanctuaries turned into a museum in Turkey. There the Hijab rules are outlawed and is is acceptable for women to go without their hair covered. In not state exploited shrines a tight scarf around your head might look appropriate, but it's quite acceptable for women to allow whips of their hair to frame their face. Appropriate hats & caps can do this function as well as scarves.

In most countries along the Sufipath the Hijab rules are not observed very strict, especially for tourists and foreigners. In Iran, however, the foreign women is usually request in a kind way to pay a penalty if she forgot maintaining a hijab.

It is not the case that wearing  must be dark in Iran. The whole idea is modesty and there is no limitation in this respect.

Woman on the Sufipath are free to use light colors in the summer. The body should be covered with loose clothes that does not show too much cleavage. Tight jeans are no problem.

Feets can be bare and you can wear sandals.

Remain conservative if you're unsure about the dress-code to enter a shrine or sanctuary, watch the woman entering to select the style.

Know that once a chador is needed, like in very holy places, it will be given upon entrance. There are some places along the Sufipath in Afghanistan and Saudi Arabia where the burqa ensures modesty and prevents woman from being seen by men who are not family members.

Note that the Islamic dress code for women only takes effect at the moment your airplane crosses into Saoudi Arabian or Iranian airspace.