The Prophet (ﷺ) delivered a sermon at `Arafat and said, "Whoever does not get an Izar can wear trousers, and whoever cannot get a pair of shoes can wear Khuffs (socks made from thick fabric or leather)."
Sahih al-Bukhari Book 28, Hadith 23
← Previous Hadith Allah's Messenger (ﷺ) was asked what sort of clothes a Muhrim should wear. He replied, "He should not wear a shirt, turbans, trousers, a hooded cloak, or a dress perfumed with saffron or Wars; and if slippers are not available he can wear Khuffs (socks made from thick fabric or leather) but he should cut them so that they reach below the ankles.

Sahih al-Bukhari Book 28, Hadith 22 Next Hadith → The Prophet (ﷺ) assumed Ihram for Umra in the month of Dhul-Qa'da but the (pagan) people of Mecca refused to admit him into Mecca till he agreed on the condition that he would not bring into Mecca any arms but sheathed.

Sahih al-Bukhari Book 28, Hadith 24