The most beloved garment to the Prophet of Allah ﷺ was the striped Yemeni cloak.
أخبرنا عبيد الله بن سعيد قال حدثنا معاذ بن هشام قال حدثني أبي عن قتادة
كان أحب الثياب إلى نبي الله ﷺ الحبرة
No references are available.
Bukhari transmitted it in the Book of Clothing, Chapter on burd, hibr, and shamlah garments, hadith no. 5813, and Muslim in the Book of Clothing, Chapter on the excellence of wearing hibrah garments, hadith no. 33/2079, from the hadith of Muaz bin Hisham Dastawai, through the same chain.