Marrying an olive shirt jacket with a white and navy horizontal striped crew-neck t-shirt is an on-point choice for a cool and casual look. Introduce white and black leather low top sneakers to the equation and ta-da: the ensemble is complete. Seeing as it is getting chillier every day, this getup is a viable idea for in between seasons. This combination proves that in your early 20s your outfit options are far from limited.