What Armor Did Knights Wear? A Complete Guide

The intricate harness of steel and fabric that defined a knight’s presence on the battlefield was far more than mere decoration; it was a sophisticated system of protection engineered through centuries of evolution. Understanding what armour knights wore reveals a complex interplay between mobility, defense, and status, where each component served a specific purpose against the brutal reality of medieval combat. This journey through the layers of protection uncovers how technology and craftsmanship converged to create the iconic silhouette of the medieval warrior.

The Foundation: The Gambeson and Chausses

Before any metal touched the skin, a knight relied on a foundation of thick, padded textiles. The gambeson, also known as an aketon or padded jacket, formed the primary layer of defense for the body. Constructed from multiple layers of linen or wool, often quilted together, it absorbed the shock of blunt force trauma from maces and halberds and provided a crucial barrier against chafing from heavier plates. Similarly, chausses, reinforced padded leggings, protected the legs, laying the groundwork for the heavier defenses that would soon encase the lower body.

Chainmail: The Flexible Guardian

As warfare evolved, so did the need for greater protection against cutting weapons. This necessity gave rise to the hauberk, a coat of mail woven from thousands of interlinked iron rings. For centuries, this flexible garment was the pinnacle of battlefield technology, capable of deflecting slashing blows and piercing arrows. Knights wore hauberks that extended down to mid-thigh, and later, separate hoods and mittens were added to protect vulnerable areas without sacrificing the garment’s inherent flexibility.

The Age of Plate: From Coat to Complete Harness

The 14th and 15th centuries marked a revolutionary shift as blacksmiths mastered the art of shaping steel into hardened plates. This progression did not replace chainmail overnight but rather layered over it, creating a hybrid defense known as "white armour." The true transformation occurred with the full plate harness, a system of interlocking steel plates that covered the body from head to toe. This transition was not a single event but a gradual refinement, moving from the simpler surcoats of the 13th century to the articulated wonders of the Gothic and Maximilian armours of the late medieval period.

The Articulated Masterpiece: Components of the Full Harness

A complete suit of plate armour was a masterpiece of engineering, designed to distribute force and allow the wearer to perform tasks ranging from mounting a horse to engaging in close combat. The cuirass, consisting of the breastplate and backplate, protected the vital organs and was often shaped to deflect blows away from the body. The fauld, resembling a skirt made of overlapping lames, protected the lower abdomen and hips while maintaining mobility. To guard the limbs, rerebraces secured the upper arms, while vambraces covered the forearms, and couters protected the elbows, all working in harmony to create a seamless shell of defense.

Mobility and the Visor

Perhaps the most iconic piece of the knightly arsenal was the helm, which evolved dramatically to balance protection with vision. The great bascinet, often worn under a larger great helm, provided excellent coverage for the head and neck. For tournament use, the close helm offered ventilation and visibility with a narrow slit for the eyes. However, it was the development of the articulated visor—hinged and pivoting to reveal the face—that truly revolutionized the practicality of the suit. This allowed the knight to eat, drink, and communicate without removing the entire defense, a critical advantage during long sieges or campaigns.

Beneath the steel, the reality of combat necessitated further layers. Chausses of mail continued to be worn under plate cuisses and knees, protecting the gaps where the plates met. Gloves, or gauntlets, were meticulously crafted with reinforced cuffs and finger stalls to grip the reins and sword while shielding against cuts and friction. Ultimately, the sword belt was more than just a tool; it was a symbol of authority. Swords were secured across the body via a baldric, a wide shoulder belt that kept the weapon accessible without impeding the draw of the other arm, completing the image of the perfectly equipped warrior ready for any challenge.