In heraldry white metal ( steel, silver, etc is considered white- hence White Armor is the normative style of color- for unit and national ID< they would wear vests or something amounting to T-shirts- with various devices usually cruciform ( hence crusader- one who carries the cross afield) as insignia. The French favored the Fleur de Lis and also the Cross of Lorraine which has two horizontal Bars. Capes were also used for protection from the sun, imporant in North Africa. The Cape could be white. On a female knight like Joan of Arc a fancy white cape is extremely becoming!
The Knights Templar were expected to wear white surcoats with a red cross and a white mantle; the sergeants wore a black tunic with a red cross on front and back and a black or brown mantle.
The term is sometimes applied to the Ku Klux Klan and similar organizations such as the Night Riders. ( not, Knight Riders) As they operated on horseback and did wear white costumes ( but not Knightly armor by any means- and certainly not noblemen as regards to fighting tactics.. they verged on terrorism, arson, kidnapping. Anyhow, and it is really a misuse of a noble term, sometimes they are styled White Knights., Black Knights were US Army football team from West Point!
THE KNIGHTS TEMPLAR WORE WHITE WITH A RED CROSS AND THE KNIGHTS HOSPITALIER WORE BLACK WITH A WHITE CROSS Not forgetting the Teutonic Knights who wore white with a black cross.
they trained
A tasset was a piece of armor that hung over the thigh, protecting it.
The Knights Templar were expected to wear white surcoats with a red cross and a white mantle; the sergeants wore a black tunic with a red cross on front and back and a black or brown mantle.
knights wear armor such as mail that protects their upper half
Some wear a garter hence Knights of the Garter (K.G.). Knights might also wear woolen under garments. When not wearing amour (modern day) on official functions, they wear a cap and robe.
clothes
Sabatons
The wear shining armor.
They would wear suits of metal plate armor, but early knights wore tough leather
White Knights of the Ku Klux Klan was created in 1964.
"Knights in White Satin".
The White League and the Knights of the White Camellia also worked to reduce support for Republicans in the South following the US Civil War.
feet
ARMA