One of the coolest ways for a man to style out a charcoal crew-neck t-shirt is to pair it with white chinos in a casual combo. Rounding off with black leather work boots is the most effective way to add a touch of stylish nonchalance to your look. A great illustration of transeasonal style, this outfit is perfect come warmer days. All in all, a great demonstration of relaxed style for 30-year-old gents.