Rev up your styling game in this combo of a trenchcoat and a white turtleneck. Complement this look with a pair of dark brown leather derby shoes to instantly jazz up the getup. So as you can see here, it's a kick-ass, not to mention spring-friendly, combination to have in your transitional rotation. As a gent in his 30s, you want to start dressing with more sophistication. In this case, ensembles like this become very relevant.