Undeniable proof that a grey linen double breasted blazer and grey linen dress pants look awesome when paired together in a sophisticated ensemble for a modern guy. White leather low top sneakers will add a more casual vibe to an otherwise dressy look. So if you're on a mission for an outfit that's seriously stylish but also feels totally spring-friendly, look no further. If you're wondering what you should wear as a 40-something guy, this ensemble gives a fair idea.