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),
Formal trousers the stripe pattern, and not to the fabric. Similarly, the slang term "spongebag trousers" or "spongebags" is due to the perceived similarity of the distinctive stripe pattern to traditional sponge-bags, a bag of toiletries (but does not apply to check patterns). In Germany, the synonym "Stresemann trousers" occurs, for the same reasons as the semi-formal stroller is called a "Stresemann". Formal trousers were originally introduced in the first half of the 19th century as a complement to the then widely worn frock coat. As established formal day attire trousers, they were subsequently introduced to go with the morning dress, which