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 25 One Shoulder Wedding Guest Dresses to Shop Now Romilly Sequin Mini Dress Candy Pink M A Line Off Shoulder Satin Orange Long Prom Dress, Orange Formal Evening Dress Long Sleeve Embellished Backless Maxi Dress in Black 12 Oh Polly