feet
Sabatons
Shoes
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
The wear shining armor.
They would wear suits of metal plate armor, but early knights wore tough leather
ARMA
Thimble (men can wear it too!)
Clothing for knights varied greatly between regions and times. However, in general they wore higher quality tunics and chausses/braies with turnshoes and perhaps a coif. These pieces cover the torso, legs/groin, feet, and head respectively.
Yes, they called them "knighties."
Clothes