According to the 1975 U.S. Navy Uniform Regulations, the rarely seen Service Dress Blue (Yankee) uniform was for "warm weather afternoon and early evening functions such as yachting parties." The uniform was Billabong Love Letters Floral Midi Dress Urban Outfitters Canada usmma uniforms: service dress blues 1946 1952 Ian Watts Uniforms of the United States Navy Wikipedia Billabong Go Coastal Midi Dress In Blue ShopSimon