This pairing of a navy shirt jacket and charcoal vertical striped chinos is well-executed and yet it's laid-back enough and apt for anything. And if you need to instantly dial up your outfit with one item, add dark brown leather tassel loafers to the mix. This look is an appealing choice when it comes to a cool getup that transitions easily into fall. Wondering what clothing is appropriate as you get into your 30s? This getup is a good illustration.