The tuxedo or tux is a formal evening suit distinguished by its satin labels. Tuxedos are generally black but are available in other colors. Acceptable attire for all occasions.

Most Versatile - The name “notch” is given to the appearance of a notch being cut out of the lapel. The notch lapel is the most commonly seen lapel for blazers and is the standard lapel for blazers and suit jackets.

Traditional - The name “peak” is given due to the appearance of the points of the lapel arriving at a peak at the top near the shoulders.
Commonly found on more formal clothes with solid colors and pin stripes being best for this formal style.

Most Elegant - The shawl lapel is a continuous curve with no angle. It is commonly found on dinner jackets and tuxedos and often finished in satin.