Soldiers may wear the OG 108 uniform only on duty, when prescribed by the commander. The OG 108 uniform is not authorized for travel or for wear off military installations, except in transit between the individualâs quarters and duty station. (See para 1â10c for exceptions to this policy.) The OG 108 uniform is an organizationally issued field uniform and is not intended for wear as an all-purpose uniform when other uniforms are more appropriate. Personnel may wear components of this uniform with utility and other organizational uniforms as part of a cold-weather ensemble, when issued and prescribed by the commander.