Uniforms of the United States Navy Wikipedia DVIDS Images NAMRU D conducts winter uniform inspection [Image 2 of 2] Something changed for this year's winter uniform shift. All Sailors in Navy Region Southwest will shift to winter uniforms Oct. 1 including San Diego. Below is an excerpt from Navy Region Southwest ( If you could bring back one discontinued U.S. Navy uniform, which would you choose? The Aviation Working Green, the Winter Working Blue 'Johnny Cash', the Service Dress Blue (Yankee), or the Officers' U.S. NAVY ENLISTED SERVICE DRESS BLUE UNIFORM (E1 E6)