Commanders neither had the authority to require their officers to have the uniform nor designate when to wear the uniform
Decode Formal and Black-Tie Gown Rules: Length, Fabric, Silhouette, Neckline, and Color Formal and black-tie rules require floor-length gowns, satin or silk or velvet or sequin or lace fabric, mermaid or column or ballgown silhouettes, polished necklines (V, halter, sweetheart, one-shoulder), and jewel-tone or black or metallic colors
Tiffany Rose and JoJo Maman Bebe are brilliant brands to consider as they specialise in maternity wear, however you'll also find lots of high street brands also stock maternity collections
Desert Boots Casual and timeless, desert boots are the go-to for off-duty styling