The tuxedo is the popular choice for classic black tie affair. Classic black tie is - a black tuxedo, white shirt, black bow tie, and black shoes. In addition, you can wear a cummerbund or a vest, also in black. Today, navy is acceptable.
Black Super 110s Italian Wool Barathea Cloth, Satin peak lapel, 1 button Tuxedo. Shown here with matching wool vest.