The Navy Dress uniforms! : r navy US Navy Dinner Dress Blue Jacket of Frederick Becton Patriots Point Naval & Maritime Museum Dinner Dress Whites for the Navy Ball in Singapore in 1996. U.S. Naval Reserve c1923 Cadet's "Evening Dress, Blue" Jacket United States Navy Service Dress Blues Uniform Lieutenant History in the Making 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