In the late 1920s and 1930s, a design considered very stylish was the single-breasted peaked lapel jacket. This has gone in and out of vogue periodically, being popular once again during the 1970s, and is still a recognised alternative. The ability to properly cut peak lapels on a single-breasted suit is one of the most challenging tailoring tasks, even for very experienced tailors.The width of the lapel is a varying aspect of suits, and has changed over the years. The 1980s saw mid-size lapels with a low gorge (the point on the jacket that forms the “notch” or “peak” between the collar and front lapel).
Most single-breasted suits have two or three buttons, and one or four buttons are unusual.