Pairing an overcoat and black vertical striped chinos is a fail-safe way to infuse a refined touch into your daily routine. For something more on the daring side to complement this look, add a pair of hot pink high top sneakers to the mix. It's a great choice if you're figuring out a killer ensemble for in-between weather. This combination illustrates how to slay in the casual style department as a 20-something man.