For something on the cool and laid-back end, test drive this pairing of a zip sweater and charcoal sweatpants. We love how cohesive this outfit looks when finished off with a pair of black leather low top sneakers. As you can see, this outfit is a really nice idea, especially for awkward transition weather, when the temps are dipping. And if we're talking casual fashion tips for guys over 30, this ensemble is a good look on most men.