This pairing of a sweater vest and olive corduroy chinos is the perfect balance between formal and casual. Rounding off with a pair of brogues is a guaranteed way to inject an element of refinement into this outfit. During the winter season, when warmth is essential, it can be easy to settle for a less-than-stylish look in the name of convenience. But this look is a striking example that you totally can stay toasty and remain stylish at the same time in the winter season. As you step into your 30s, you probably want to start dressing more maturely. In this case, combos like this come in very handy.