Experts recommend that every man have a navy suit, the ultimate versatile choice for work, weddings, and nearly any occasion, and a charcoal gray suit, slightly more formal and equally adaptable with a variety of shirts and ties. A black suit is essential for formal events, evening occasions, and funerals, while an optional patterned or lighter suit—such as a subtle check, light gray, or seasonal fabric—adds variety and personality. In total, three to four suits are enough to cover most occasions, keeping your wardrobe sharp without being overcrowded. 3 - 4 suits in short.