This combo of a burgundy sweatshirt and a white crew-neck t-shirt is a good outfit for off duty. Dial up the wow factor of this look by finishing with a pair of white athletic shoes. With the departure of snow come warmer afternoons and balmy nights and the need for a kick-ass outfit just like this one. Casual getups for stylish 20-year-old guys aren't actually that hard, as you see here.