File:US Navy 080807 N 7090S 012 Yeaoman (SW) 1st Class Dru Maclin 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 Uniform: Winter blue, male Navy officers NARA & DVIDS Public Domain Archive Public Domain Search Vietnam US Navy Coat 39 Regular PO1 Winter Wool Dress Blue Military Uniform eBay Navy Uniforms: Men's Full Dress Blue, E 1 through E 6. 1984 Uniform Regulations, Page 7 12 PICRYL Public Domain Media Search Engine Public Domain Search Vintage US Navy Military Man's Wool Winter Dress Coat Size:38L Use Military Steals and Surplus