Anas (May Allah be pleased with him) reported: Messenger of Allah (PBUH) permitted Zubair and 'Abdur-Rahman bin 'Auf (May Allah be pleased with them) to wear silk because they were suffering from an itch.
Commentary
This Hadith tells us that, if needed, even men can wear clothes made from silk. For example, it may be suggested in case of a skin disease like itch. A man may also be allowed to wear a silk dress in order to escape extremely cold or hot weather provided he has no other clothes.