This casual combination of a white crew-neck t-shirt and yellow chinos is super easy to throw together without a second thought, helping you look awesome and prepared for anything without spending too much time digging through your wardrobe. If you wish to easily play down your ensemble with footwear, add a pair of beige athletic shoes. So if you're scouting for an ensemble that's seriously stylish but also feels totally spring-friendly, this just might be it. And if we're talking casual dressing ideas for 40-year-old gentlemen, this outfit looks cool on almost any gentleman.