According to the 1975 U.S. Navy Uniform Regulations, the rarely seen Service Dress Blue (Yankee) uniform was for "warm weather afternoon and early evening functions such as yachting parties." The uniform was Royal Blue Velvet One Shoulder Long Formal Dress with Attached Train Royal Blue 00 Velvet Elegant Sydney Navy Maxi Dress Perfect for Formal Events & Weddings Large Blaise Navy Satin Prom Dress US 0 Beginning Boutique Exclusive Long Sleeves Glitter Royal Blue Wedding Guest Dress with Split Amazing Royal Blue Sequin Mermaid Slit Evening Wear Xdressy