The tabard emerged in the 13th century as a functional surcoat, evolving from the cyclas to provide a canvas for the display of heraldic achievements in the field of battle and at tournaments. In its classical form, it features short sleeves or open wing-like shoulder flaps and is open at the sides, ensuring the wearer’s coat of arms is visible from both the front, back, and shoulders. While originally a utilitarian garment for protection against the elements and to identify the combatant, it became increasingly elaborate, crafted from rich velvets, silks, and cloth of gold for high-ranking nobility.
In modern heraldic practice, the tabard remains the official vestment of the officers of arms (Kings, Heralds, and Pursuivants). In the United Kingdom, these garments specifically display the Royal Arms of the sovereign. The distinction in material often reflects the rank of the officer: a King of Arms wears a tabard of velvet, a Herald of satin, and a Pursuivant of damask. It stands as one of the most enduring symbols of the continuity of the English Crown and the medieval system of honorifics.