For an outfit that's extremely easy but can be manipulated in a ton of different ways, go for a white crew-neck sweater and olive chinos. When this look is just too much, dress it down by slipping into black canvas low top sneakers. So if you're on the hunt for a look that's on-trend but also feels entirely spring-appropriate, this one fits the task well. And if we're talking casual style tips for guys in their 40s, this combination is a good look on most gents.