A man got up and said: O Messenger of Allah (PBUH), what type of clothing do you command us to wear during the ihram? The Messenger of Allah (PBUH) said: Do not wear shirts, turbans, pants, hooded garments, or shoes, except if someone does not find sandals, let him wear shoes up to below the ankles, and do not wear anything that has been touched by saffron or wars (plant used in dyeing). And a muhrim woman should not wear a niqab or gloves.
Ibn 'Abbas heard the Messenger of Allah (PBUH) delivering a sermon at Arafat and said: Whoever cannot find sandals, let him wear shoes, and whoever cannot find a wrap-around knee-length garment (izar), let him wear pants.