_Undress uniform._—The blue undress coat, undress trousers (white trousers may be worn), undress cap (white undress cap may be worn), black shoes (white shoes with white trousers), white gloves, the sword worn suspended from a tan leather belt and slings. When mounted undress breeches and black boots are worn. The undress coat for all officers is a single-breasted sack coat of dark blue cloth or serge extending to about ten inches below the waist, with a standing collar, buttoned down the front by five Marine Corps gilt buttons. On the front it has four outside patch pockets, one on each breast and one on each side below the breast pockets with their tops at the waist line, all the pockets being closed by pointed flaps buttoned by small Marine Corps gilt buttons. On the shoulders there are shoulder straps of the same material as the coat extending from the shoulder seam to the base of the collar, the insignia of rank being worn thereon. The Marine Corps device indicating the corps and the staff corps device or aide-de-camp’s device for indicating the staff corps or special assignment of officers being worn on the collar on each side of the neck opening in front. The sword belt is worn underneath this coat. The undress trousers for General officers are of dark blue cloth with stripes of black mohair braid down the outer leg seams, for Line officers below the rank of Brigadier General they are of sky-blue cloth or serge with one and a half inch scarlet stripes down the outer leg seams, and for Staff officers below the rank of Brigadier General they are of dark blue cloth or serge with one and a half inch scarlet stripes down the outer leg seams. The undress cap is of dark blue cloth with a sloping visor having the same ornamentation for General officers and Field officers as the full dress cap, the Marine Corps device in the center of the front and a chin strap above the visor made of gold braid three-eighths of an inch wide with a narrow scarlet stripe through the center of it. For General officers the band of the cap is of blue-black velvet and for all other officers it is of black mohair braid. The white undress cap is made of white duck and white braid of the same style as the blue undress cap and provided with the same visor, corps device and chin strap as the blue undress cap. Undress breeches, worn when mounted, are of the same color as undress trousers and have the same stripes. _White undress uniform._—The white undress coat, white trousers, white cap, white shoes, white gloves and sword with tan leather sword belt and slings. The white undress coat is made of white duck or drill after the same style and design as the blue undress coat and bears the same rank, corps and staff devices.