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),
Oilskin large overlap with the jacket. They are held up by shoulder straps, and typically feature straps around the bottom of the legs to cinch around seaboots. This semi-watertight seal does not allow them to be used like fishing waders, but a wave sweeping briefly across the deck will generally be kept out. All but the cheapest brands are reinforced across the seat and knees. In moderate weather often only the trousers are worn. Although a few all-in-one, boilersuit-shaped oilskin suits are available, most sailors prefer the flexibility of a separate jacket and trousers. The cuffs of better oilskin jackets include