Shoulder insignia
Shoulder insignia is a section of fabric or metal affixed to the shoulders of a uniform and which may bear rank or other insignia. Shoulder insignia may take several different forms, including a shoulder board (a firm board often encased in fabric), a shoulder knot or shoulder cords (when made of a braided material), shoulder chains (a form or chain mail worn by British cavalry and yeomanry regiments), an epaulette (an ornamental shoulder piece with a fringe) or a shoulder strap (a simple and flexible cloth material, often affixed to the shoulders of a service or combat uniform). A rank slide, shoulder mark or slip-on may be worn on a shoulder strap, usually on a combat uniform.