Dress shirts designed for a tuxedo (and worn with cuff links) are required. You can also style them with pocket squares, dress socks, and black dress shoes (velvet or patent leather); these are typical accessories for a tuxedo. Sometimes you might add a bow tie, a cummerbund, or waistcoat.
A tuxedo is specifically designed for more formal occasions. For that reason, it features details you won’t find on a suit, such as an outer stripe on the side seam of the pants and often, satin lapels. Tuxedo pants aren’t worn with a belt (as a suit is); instead, it uses either suspenders or a cummerbund.
Tuxedos are worn infrequently, so proper storage is key. After wearing, brush the tuxedo to remove dust, dirt, and lint. Spot clean any stains or spills right away. Hang the tux on a sturdy hanger away from sunlight; use a breathable garment bag to prevent moths. Use a steamer to remove any wrinkles, and dry clean only on occasion.
Yes. An overcoat is the most common choice to wear over a tux, one in a color that complements the color of the tuxedo (such as dark gray, black, or navy). If possible, choose an overcoat made of classic wool. Avoid wearing a more casual coat, like a trenchcoat or peacoat.