As you can see, looking stylish doesn't take that much effort. Consider pairing a white and blue horizontal striped crew-neck t-shirt with navy corduroy dress pants and you'll look incredibly stylish. If you want to immediately bump up this outfit with one single piece, why not complement this look with dark brown leather loafers? When it's one of those bleak fall days, sometimes only a kick-ass ensemble like this one can brighten it up. Smarter getups like this work handsome on 30-year-olds.