This is definitive proof that a green-yellow crew-neck t-shirt and navy jeans look awesome when worn together in a city casual look. Serve a little outfit-mixing magic by rocking a pair of tobacco suede casual boots. So as you can see, it's very easy to look amazing and stay snug when cooler weather comes, all thanks to combinations like this one. Overall, an ideal demonstration of off-duty style for 20-year-old gentlemen.