Sup, iam Melissa Miller, Asalam walekum.
What Do You Wear Under Plate Armor? [Solved]
An arming doublet (also called aketon) worn under armour, particularly plate armour of fifteenth- and sixteenth-century Europe, contains arming points for attaching plates. Fifteenth century examples may include mail goussets sewn into the elbows and armpits to protect the wearer in locations not covered by plate.
What did Knights Wear Under Their Armour?
What is an arming doublet?
How to dress in medieval armour
Jason KIngsley, the modern knight, puts on his mid C15th steel
Armour Mobility & Fit: Breastplates & Using Weapons
The shape and fit of a medieval