U.S. NAVY ENLISTED SERVICE DRESS BLUE UNIFORM (E1 E6) REMINDER: Winter Uniform Shift. Winter uniform shift for the Mid Atlantic Region is split into two zones. If you are in Zone 1 (Virginia and North Carolina), winter uniform shift is not until 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 ( File:US Navy 080730 N 7090S 004 Personnel Specialist 1st Class Howard Williams models the new E 6 and below Service Uniform (SU). The SU is for year round wear and replaces summer white and winter blue uniforms.jpg U.S. Naval Academy Uniforms: What Each Means