Opt for a white long sleeve shirt and olive corduroy chinos to achieve a casually cool look. Feeling brave today? Dial down this look by sporting athletic shoes. During winter, when practicality is essential, it can be easy to surrender to a less-than-stylish outfit. This outfit, however, is a practical illustration that you totally can stay snug and remain stylish during winter. As a man in his 30s, you probably want to start dressing like a grown-up. If that's the case, outfits like this are a tested option.