Women wearing trousers
The clothing of men and women are from the normal things that are subject to the custom of each nation, or family and to its time and place, in order to get the benefit of its uses and protect from harm. Clothing is not considered as an act of worship that the wearer has to embrace a specific type of dress or outfit, because its ruling remains permissible. In fact, all normal things that are not harmful to the religion or the body, and help reduce hardship or have some benefit are considered recommended and there is not any objection in using them, in as much that there is no text that forbids it, or it is not associated with any law that Islam condemns, or associated with a law that is outright forbidden.
Any type of cloth that the law has legislated that it is forbidden, then it is forbidden such as wearing silk and gold for men for no valid reason, if there is a reason to wear them such as wearing silk, or having a gold tooth because of medical necessity, or physical benefit then it is allowed according to the law, and Allah has made the religion easy, from every aspect, Allah SWA says: (He has imposed no hardship upon you in the matter of your faith) Al Hajj: 78.
However, if it is associated with clothing- from any type- any intention or act that is forbidden by law, such as wearing some kind of clothing out of showing off and arrogance, or when a woman wears clothing that show her private parts, or she wears something that resembles the dress of disbelievers, then this is not allowed according to Islamic law, not for the same clothing but for what it has been associated with from the acts that are forbidden.
This may be forbidden, or it may be disliked, and this is judged by what it is associated with it.
For wearing a hat or beret for men and women, only wearing it inline with the norms of their people, or he means to receive benefit from it such as shading himself from the sun, or other things which it may benefit him, then there is no harm, in fact, if it is worn for a good purpose as to receive benefit or to ward off any harm then it is commendable.
As for coats, trousers, pyjamas, jackets and fez, these have become peoples clothing, and there is no harm in men and women wearing them, as long as it does not involved anything from what is forbidden, from what is mentioned above.
Hence, we see that the significance of woman clothing is not determined by name, but the dress itself. As long as a woman’s dress does not describe, neither reveal the woman’s nakedness, and is not an adornment in itself, or it is worn for fame and arrogance, then there is nothing wrong with it.
For the woman who wears trousers in the presence of her husband, it is not wrong at all, because the husband has the right to see his wife, and this is not regarded as imitating the disbelievers.