This combination of a navy cable sweater and a white and red vertical striped long sleeve shirt is super easy to do and so comfortable to wear a variation of throughout the day as well! For a more refined take, introduce brown suede casual boots to the equation. Can you see how super easy it is to look stylish and stay warm when chillier weather arrives, thanks to this ensemble? This outfit suggests how to dress fashionably and look good in your early 20s.