A must-have midi black dress that is versatile enough for formal occasions and adaptable across all four seasons would feature a timeless, elegant design. This dress would be a staple item due to its adaptability to various formal occasions, ease of accessorizing with statement jewelry or scarves for personalization, and suitability for layering with blazers, cardigans, or coats,making it an essential piece for any wardrobe looking for a go-to formal dress that can be worn across all seasons.