For the general public visiting the State Rooms of Buckingham Palace during the summer opening in 2026, there is no formal, strict dress code; however, "smart-casual" attire is highly recommended out of respect for the historic royal setting. Visitors are encouraged to wear comfortable walking shoes, as the tour involves significant standing and a walk through the palace gardens. Conversely, for those attending official royal functions, such as Royal Garden Parties or investitures, the dress code is strictly formal. In 2026, the "gold standard" for men is a well-tailored lounge suit, morning dress, or military uniform, typically paired with a tie and polished leather shoes. For women, elegant day dresses (usually knee-length or longer) are expected, often accompanied by a hat or a discreet fascinator. While modern updates have allowed for softer suit constructions and muted heritage shades like sage or dusty rose, revealing styles such as strapless or off-the-shoulder dresses remain inappropriate for official palace events. Fitting seamlessly into the "timeless atmosphere" of the palace means prioritizing polished, modest, and understated elegance.