Double Breast Navy Blue Prom Evening Dress Suits for Men , Dinner Party Suit 2 Pieces CB07192 US34 Navy Amazing Evening Dress A Line Square Neck Floor Length Short Sleeves Zipper Pleated Tulle Formal Dinner Dresses Pageant Dress 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 File:U.S. Navy evening and dinner dress blue uniforms, c. 1967.jpg Wikimedia Commons