For an ensemble that's worthy of a modern style-conscious guy and effortlessly classic, go for a beige wool blazer and navy chinos. Complement this outfit with brown leather derby shoes to completely change up the look. So if you're on the hunt for a neat outfit that will take you from winter to spring, look no further. As you're heading into your 30s, you want to start dressing maturely. That's when ensembles like this are a foolproof option.