If you're looking for a casual and at the same time seriously stylish look, marry a zip neck sweater with blue chinos. Hesitant about how to round off? Introduce high top sneakers to the equation for a more laid-back vibe. When it comes to dressing for in-between weather, nothing beats a neat getup that transitions easily between seasons. A good example if you want to shed your boyish look and start dressing like an adult man.