So as you can see, it doesn't take that much work for a man to look casually neat. Just reach for a black pea coat and a crew-neck t-shirt and you'll look amazing. For something more on the daring side to complement this look, add a pair of dark brown leather work boots to your look. There's nothing like a killer getup to brighten up a gloomy fall afternoon. This getup illustrates that in your twenties your dressing options are far from limited.