For an off-duty look with a modern finish, you can easily opt for a shirt jacket and a polo. If you wish to easily tone down your getup with shoes, why not throw white athletic shoes in the mix? In the colder months, when warmth is critical, it can be easy to settle for a less-than-stylish look in the name of functionality. But this look is a striking illustration that you can actually stay cozy and remain stylish at the same time during the colder months. The ability to wear looks like this is one of the dividends of heading into your 30s.