This combination of a v-neck sweater and a white dress shirt is undoubtedly a statement-maker. In the colder months, when warmth is key, it can be easy to settle for a less-than-stylish getup. But this getup is a striking illustration that you can actually stay toasty and remain equally stylish during the colder months. As a gent in his 30s, you want to start dressing with more polish. That's when outfits like this are a safe option.