This combination of a white v-neck t-shirt and black chinos is irrefutable proof that a straightforward casual getup can still look really sharp. White leather low top sneakers are a savvy pick to finish your outfit. When it's one of those gloomy autumn days, sometimes only a killer outfit like this one can get you out the door in the morning. Those wondering how to dress with style and look good as you progress through your 20s, you have your answer.