Known as a smoking in German, Italian and French speaking countries and a tuxedo in the USA, and not to be confused with the “smoking jacket”, which, as the very name suggests, was once donned by gentlemen before retiring to the smoking room and removed in favour of the dinner jacket on their return, in order not to offend the delicate nostrils of the ladies present with the smell of smoke and tobacco. The smoking jacket also differs from the dinner jacket in terms of appearance, and is generally crafted in velvet, with a shawl collar and embroidery.
As well as for a number of clearly defined occasions, the dinner jacket is worn in formal settings, and is considered evening dress. For example, in the finest hotels in Europe, it is not uncommon to see gentlemen wearing one to dinner.
The classic dinner suit colours are blue and black, with inserts such as a strip down the side of the trousers and satin on the lapel. Together with the bow tie, a cummerbund must be worn around the waist where the shirt is tucked into the trousers. In recent years, the dinner suit has become a popular choice for grooms, especially for civil ceremonies, or weddings held in the evening. They are simpler in shape than traditional models, with a different jacket length, and come in a variety of shades of blue.