The service uniforms for both officers and enlisted men consist of a single-breasted sack coat of khaki-colored woolen cloth for winter and cotton drill for summer; trousers or breeches of the same materials, and a bell-crowned cap with sloping visor of tan leather and a band of the distinctive color of the arm of the service.
The service coat has a standing collar with a patch of the distinctive color for the arm of the service on each side of the neck opening, a pocket with buttoned flap on each side of the breast and a plain pocket on each side below the waist.
Officers wear breeches and boots when mounted and tan leather leggings or khaki-colored wrap puttees for dismounted service. The shoes worn by both officers and enlisted men with the service uniform are of tan leather.
The rank of the officers is indicated by shoulder straps worn transversely across the shoulders next to the shoulder seams of the sleeves, after the style of the shoulder strap worn by officers of the United States Army with their blue dress coats. These are the only two great armies in which this form of shoulder strap is worn by officers to indicate rank.
These shoulder straps are covered with cloth of the distinctive color of the arm of the service with stripes of gold braid running lengthwise of them on the same scheme as that used on the shoulder straps worn by Japanese naval officers as illustrated, namely, for General officers one wide stripe, for field officers two narrow stripes and for company officers one narrow stripe. On the gold stripes silver stars are worn for the different grades of rank in each class. The number of stripes and stars for each grade is as follows:
| General Officers. | |
| General | Three stars on one wide gold stripe. |
| Lieutenant General | Two stars on one wide gold stripe. |
| Major General | One star on one wide gold stripe. |
Field Officers. | |
| Colonel | Three stars on two narrow gold stripes. |
| Lieutenant Colonel | Two stars on two narrow gold stripes. |
| Major | One star on two narrow gold stripes. |
Company Officers. | |
| Captain | Three stars on one narrow gold stripe. |
| First Lieutenant | Two stars on one narrow gold stripe. |
| Second Lieutenant | One star on one narrow gold stripe. |
The rank of noncommissioned officers is shown by narrow stripes around the cuffs, and for all enlisted men the arm of the service is indicated by the color patches on each side of the collar and the regimental number is worn upon these collar patches, Arabic figures being used for the regular service, Roman numerals for the militia and Arabic figures on one side of the collar and Roman on the other for the reserves.
The overcoat for officers is a double-breasted ulster similar to that worn by American officers, and that for enlisted men is single-breasted and short. The overcoats are of khaki-colored cloth.
The service belts for both officers and men are of tan leather.