Three piece suits were considered to be out of fashion in the early 80's but it bounced back in 90's and proved the world of fashion that it has stood the test of time. The attitude in which one wears this suit plays a major role in determining one's personality. This suit is best during winter season to make them feel warmth and prevent from cold breezy winds. It can also be used during summer by putting only the vest on and remain calm in an overheated office, unlike the guys in shirtsleeves.
The pants are lined to the knees and they are flat-front for slim type suits and pleated for classic tradition type suits. Three-piece suits are mostly used for business purposes and other formal meetings and lawyers who do a lot of case studies choose to wear a three piece suits. If one wishes to be more formal for an occasion, then three-piece suit is the right choice.