A waistcoat and white dress pants are a polished look that every modern gentleman should have in his closet. Send your look in a more relaxed direction by rocking black leather chelsea boots. In winter, when practicality is crucial, it can be easy to surrender to a less-than-stylish look. However, this look is a vivid example that you totally can stay snug and remain stylish at the same time in winter. This is a modern and mature combination for men in their thirties.