Salim bin Abdullah said that Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) used to order the cutting of leather socks for a woman in ihram. Then Safiyyah bint Abi Ubayd told him that Sayyidah Aishah (may Allah be pleased with her) had told her that the Messenger of Allah (peace and blessings be upon him) "had granted women a concession regarding leather socks", so he too abandoned it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9076