A navy denim jacket looks especially classy when worn with a waistcoat in a modern man's getup. Let your outfit coordination sensibilities truly shine by finishing off your ensemble with a pair of white canvas low top sneakers. This one is a viable choice if you're figuring out a standout look for transeasonal weather. As you're maturing from your 20s to your 30s, you want to start dressing like a grown-up. In this case, outfits like this are a winning option.