This combination of a dark green print short sleeve shirt and navy jeans provides comfort and utility and helps you keep it low profile yet current. Complement your ensemble with a pair of grey canvas low top sneakers and the whole look will come together brilliantly. When temps are getting lower and fall is setting in, you'll appreciate how ideal this getup is for summer-to-fall weather. And if we're talking casual style for men in their 30s, this getup is perfect.