ya the muslems wore nothing
The Crusaders wore mostly chain or plate armor. Normal people would just wear normal clothes for their time.
they didnt wear armor if you mean modern day times
Well, they would wear a white cloth with a red cross over chainmail. which is a type of armor with little rings linked together. The red cross represented that the Crusader bearing it was a follower of Christ.
Chainmail
armor suits
A Muslim wore a helmet(that did not cover all the face but was worn with a chain mail hood), A Round wooden shield with a metal rim, a broad bladed chopping sword, and a padded tunic :)
During the Crusades, Muslim soldiers typically wore padded armor, chainmail armor, and sometimes plate armor to protect themselves in battle. They also wore turbans or helmets to protect their heads, and carried shields for additional defense. Additionally, they carried a variety of weapons such as swords, spears, and bows.
A coat of mithril he was given out of Smaug's hoard.
chainmail armor helmet chest plate gauntlets footwear
Ninjas were spies and assassins, they generally wore whatever would help their disguise. They could be dressed as a farmer, a bureaucrat, a fisherman, etc. If they were on a late night dressed in black sneak attack mission they would probably wear no armor to be as silent as possible. If they were going into a frontal battle I guess they would wear whatever armor was popular and available at the time.
They wore metal armor to protect themselfs.
Samauri Armor.