Showcase your credentials in men's fashion by wearing this relaxed casual pairing of a white crew-neck sweater and blue jeans. If you're not sure how to finish off, complement this ensemble with desert boots. During the colder months, when warmth is essential, it can be easy to settle for a less-than-stylish ensemble. However, this ensemble is a vivid example that you can actually stay warm and remain equally stylish in the colder months. Gentlemen who wonder how to wear edgy off-duty dressing as you step into your 30s, you have your answer.