Uniforms of the Royal Marines musicians, plus cadets and instructors of the affiliated cadet organisations. This is the same as 1B dress but is worn with medal ribbons instead of medals and decorations. This consists of a scarlet mess jacket with a royal blue shawl collar, worn with royal blue trousers with a scarlet stripe, Marcella shirt and royal blue mess waistcoat. Officers above the rank of brigadier have their rank on shoulder straps, whilst all other officers have their rank marking positioned horizontally on the lapels of the collar. Officers of the rank of lieutenant-colonel wear stiff-fronted shirts and overalls (tight fitting cavalry trousers),
Shoulder mark and affixed to the underside of the board. This effectively hides all the means of attachments, leaving a firm, finished surface. This particular style is what U.S. Air Force personnel call a "shoulder board". The shoulder sleeve is called an epaulette, and the two are never confused. On the United States Army Blue Service Uniform, officers wear embroidered rank insignia "shoulder straps" mounted lengthwise on the outside shoulder seams. These are 1⅝ inches wide by 4 inches/3½ inches (large size/small size) long, and are sewn, snapped, or clipped onto each shoulder. The Boy Scouts of America uses colored shoulder loops