Service Dress Blue (Yankee) uniform was for "warm weather afternoon and early evening functions such as yachting parties." The uniform was formally phased out in 2011 : r navy United States Navy Service Dress Blues Uniform Lieutenant History in the Making Dinner Dress Whites for the Navy Ball in Singapore in 1996. The Navy Dress uniforms! : r navy Marlow White Navy Blue Military Uniform for Men (Size 39S) Foraml Mermaid One Shoulder Royal Blue Satin Prom Dress Evening Dress