Among all the suit design for men, the single-breasted men’s suit is the most current. With so many types of men’s suit, it can get confusing – look for one, two, or three buttons along the seam to spot one. Yes, you can call a slim fit suit, the business suit, and even the dinner suit as the single-breasted suit. These three types of suits are what most men wear to work and even events. You can pair these suit with notch lapels.