This pairing of a v-neck t-shirt and dark green chinos is the ultimate casual look for any modern guy. Rounding off with brown suede casual boots is a guaranteed way to bring a little depth to your outfit. Can you see how very easy it is to look seriously stylish and stay toasty when chillier weather comes, thanks to this ensemble? This is a good-looking and age-appropriate outfit for a man in his 30s.