Plus fours were introduced to America by Edward Prince of Wales (later Edward VII of the United Kingdom) during a diplomatic trip in 1924. They are often seen on golf courses, and frequently worn with argyle socks, silk ties, and dress shirts/sweaters. Some plus fours even came as complete suits.
The fictional comic book character Tintin was also usually seen wearing them. Reference is made to this article of clothing in Harry Potter and the Goblet of Fire.
GOLFER WITH DISTINCTIVE STYLE IS KILLED IN PLANE CRASH; PLUS FOURS MADE A STATEMENT AS PAYNE STEWART'S ATTIRE SET HIM APART.
Oct 27, 1999; NEW YORK -- One day in 1982, Payne Stewart walked out to the practice tee and noticed he was wearing the exact same thing as the...