Arming points are reinforced sections of a gambeson or arming doublet where pieces of body armor were laced on.
During the Medieval and Renaissance periods of European history, arming points allowed heavy armor to be fastened securely to a cloth undergarment via cloth or leather laces. These fastenings evolved from civilian clothing, which used similar tresses to attach sleeves and hose to a doublet, and to hold heavy coats together. The concept itself predated the Middle Ages, as both Greeks and Romans "used larger pieces of bronze and, later, iron fastened together with internal leathers..." The popularization of full plate armour, however, required specially-made gambesons or arming doublets that could support heavy pieces of armour.