You'll be surprised at how extremely easy it is for any gent to throw together this casually smart look. Just a white and navy horizontal striped crew-neck t-shirt and grey dress pants. Add black leather loafers to completely jazz up the outfit. So if it's a blazing hot summertime day and you want to look stylish without exerting much effort, this outfit will do the job in no time flat. Classy ensembles for stylish grown-ups aren't actually that hard.