 Many how-to books for men recommend wearing a conservatively styled suit to an employment interview even when the man does not expect to ever wear a suit on the job.In the 1990s, Internet businesses flourished and so did the relaxed dress standards enjoyed by unconventional dot-com businesspeople.A new form of attire had arisen, business casual, which consists of nice trousers, often chinos or khakis, and a polo shirt or short-sleeved shirt.