Hot pants came into fashion around 1970.
According to Women's Wear Daily, the term "hot pants" was first used in 1970 to describe extremely short shorts. These weren't just any shorts; they were made from luxurious fabrics like velvet and satin and designed for fashionable wear, distinguishing them from the more practical shorts worn for sports or leisure since the 1930s. The arrival of hot pants signaled a new trend in stylish, rather than simply functional, short shorts.
