Halter Neck 2 Pieces High Low Backless Navy Blue Prom Dress, Navy Blue abcprom Dating from the nineteenth century, the U.S. Navy boat cloak was still an optional item for the evening dress uniform in the 1950s. Decades after falling out of fashion, the cape finally Dinner Dress Whites for the Navy Ball in Singapore in 1996. 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