A good suit is a stylish and versatile part of any man's wardrobe. Suits are necessary for social or professional events or day-to-day work, fancy outings to dinner or the opera, and formal occasions such as weddings or funerals. A slim-fitting suit that fits the contours of the body more closely has a clean, tailored look. You can alter a suit to your proportions and save money by not having to buy a new one.
Have someone else (preferably a tailor) measure your chest, arms, inseam, waist and neck.
Take in the shoulders to make them fit more closely to the body. Get rid of shoulder pads if the suit has them.
Take in the jacket so there's only about a fist-sized distance between you and the jacket.
Streamline the seat of your pants so that there is no excess fabric. Be careful not to take in too much fabric, or the pants will cling too tightly.
Complement the tapered appearance of the suit with a skinny tie. Thin ties (about two inches in width) are in fashion and accentuate the slimness of the overall look.