One of the most popular ways for a man to style out a white v-neck t-shirt is to combine it with chinos for a laid-back getup. For a more elegant finish, why not add a pair of burgundy leather loafers to your getup? Springtime is a beautiful time of year and it calls for seriously stylish combos just like this one. Smart casual outfits for stylish 20-year-old gentlemen aren't actually that hard, as you see.