Following is a short history of men's workplace fashion.
From the early 20th century until the early 21st century, male fashion remained relatively unchanged. Suits consisted of a jacket, collared shirt, tie, and flat shoes. Sometimes, men would wear vests as well. Hair was typically worn short, and men often wore beards and mustaches. Depilation was practically nonexistant until the early part of the 21st century, when men began to prefer smooth chests, backs, and legs.
By the middle of thet 21st century, the skirt had become a necessary part of the male wardrobe. In fact, skirts and dresses, by this point, were worn almost exclusively by men. Women had long since abandoned the garments in favor of more comfortable, practical clothing. In addition, men had begun to wear flashier, more decorative jewelry. Finally, it became almost impossible to find a man who hadn't taken steps to permanently halt facial and body hair growth.
Until the mid-2060s, men had favored relatively colorless attire. However, that changed almost overnight when men began to wear skirts and dresses in every color imaginable. By this point, the modern businessman had completely abandoned the notion of wearing trousers. The traditional suit was buried in the past.