Loving the way this pairing of a white long sleeve shirt and grey wool dress pants instantly makes you look polished and dapper. For maximum impact, introduce beige leather loafers to the mix. Naturally, it's easier to work through a hot weather afternoon in a light and breezy look like this one. As a 30-something Millennial guy, you want to start dressing like a grown man. In this case, combinations like this are perfect as inspo.