White tie, which for men is also known as full dress, is the most formal of all attires. The specifications for white tie attire may not be modified and are not open to interpretation. In addition to proper wardrobe , guests at white-tie galas are expected to display impeccable social decorum.

Men

White-tie attire for men includes a black tailcoat and matching trousers, a white waistcoat with lapels and a stiff white dress shirt with a wing collar. Accessories must include a white bow tie, white mother-of-pearl studs and cufflinks, black patent leather shoes and black dress socks. Optional accessories may include a hat, gloves, or a linen handkerchief.

Women

White tie attire for women includes a floor-length formal gown made of elegant fabric, formal footwear and brilliant jewelry. Evening gloves are also standard, though sources such as Debrett's observe that they are no longer obligatory. Accessories may or may not be elaborate; however, they usually include a woman's finest jewels and should complement the style of her dress. Optional accessories may include a shawl or a jeweled hair adornment.