This pairing of a white long sleeve t-shirt and charcoal chinos is on the casual side yet it's also sharp and extra sharp. For a modern mix, complement your outfit with a pair of loafers. So if you're after a look that's on-trend but also entirely season-appropriate, this just might be it. As you're transitioning from your 20s to your 30s, you want to start dressing more like a mature gentleman. In this case, inspiration like this is very useful.