"The Messenger of Allah was asked what clothes the Muhrim may wear. He said: 'He should not wear a shirt, or a burnous, or pants, or an 'Imamah (turban, or any garment that has been touched by (dyed with) Wars or saffron, or Khuffs except for one who cannot find sandals. If he cannot find sandals, then let him cut them until they come lower than the ankles, (sahih) (Using translation from Nasāʾī 2667)
يَا رَسُولَ اللهِ مَا يَجْتَنِبُ الْمُحْرِمُ مِنَ الثِّيَابِ؟ فَقَالَ لَا يَلْبَسُ السَّرَاوِيلَ وَلَا الْقَمِيصَ وَلَا الْبُرْنُسَ وَلَا الْعِمَامَةَ وَلَا ثَوْبًا مَسَّهُ زَعْفَرَانٌ وَلَا وَرْسٌ وَلْيُحْرِمْ أَحَدُكُمْ فِي إِزَارٍ وَرِدَاءٍ وَنَعْلَيْنِ فَإِنْ لَمْ يَجِدْ نَعْلَيْنِ فَلْيَلْبَسْ خُفَّيْنِ وَلْيَقْطَعْهُمَا حَتَّى يَكُونَا أَسْفَلَ مِنَ الْعَقِبَيْنِ