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 Navy Blue Tulle Prom Dresses Mid Length Evening Dress FD3186 Viniodress Modest Blue Formal Prom Evening Dress Size 22w Blue U.S. NAVY MALE CPO ENLISTED DINNER DRESS BLUE JACKET UNIFORM US Navy Military Uniform Yacht Captain Suit Dinner Costume Military Army Soldier eBay