You can't wear it In the mosque, according to religious customs and etiquette requirements, it is necessary to abide by certain dress rules. Men should wear long-sleeved shirts and trousers, and women should wear long skirts or trousers, and their heads should be covered to show respect for their beliefs. Sunscreen covers their shoulders and arms, and there are no exaggerated or eye-catching patterns. It is acceptable for most mosques to require women to wear headscarves or veils. Men should take off their hats in mosques to show their respect for the holy places, so they cannot wear them.