Teaming a harrington jacket with a beige crew-neck t-shirt is a good choice for a casual look. A pair of beige canvas low top sneakers is a fail-safe footwear option here that's full of personality. Seeing as it is getting chillier with each day, this look seems a viable idea for the transitional season. Those who wonder how to wear modern casual outfits as you move through your 20s, you have your answer.