`Umar bin Al-Khattab (May Allah be pleased with him) reported: Messenger of Allah (PBUH) said, "Do not wear silk (clothes). For whoever wears (them) in this life will be deprived of them in the Hereafter."[Al-Bukhari and Muslim].
It is not women but men who have been forbidden to wear silk dress. It is banned for men due to its aspect of adornment and beautification which is peculiar to women alone. The silk dress is not befitting to men because it affects their typical characteristics such as bravery, strength and fearlessness. Second, it betrays arrogance and haughtiness which is condemnable by all norms of morality. Third, it has relevance to disbelievers and polytheists known for their love for worldly possessions. Fourth, its use is against that austerity which Islam aims to develop in a Muslim's life. And this is borne out by the saying of Messenger of Allah (PBUH): "Simplicity is part of Faith."