If it's ease and functionality that you're searching for in menswear, consider teaming a tan shirt jacket with a dark brown print sweatshirt. Does this ensemble feel too fancy? Let a pair of red canvas low top sneakers jazz things up. Seeing as it is getting chillier with each day, this getup seems a great choice for the time in between seasons. Gents wondering how to rock modern casual looks as you move into your 30s, this combination should answer your question.