Our jackets are slim fit and regular length. Take the guesswork out of dressing up with a complete 2-piece suit set or aim for a timeless or on-trend look with show-stopping separates. Building a more formal look that's appropriate for weddings and other major life events, like prom, requires you to coordinate more components, including men's suit vests, pocket squares and the right dress belt. You might even try a pinstripe suit or a plaid suit for an extra touch of style.