Reach for a tan bomber jacket and beige jeans for a fuss-free menswear style that's also well-executed. Introduce a pair of dark brown leather derby shoes to the equation to effortlessly kick up the fashion factor of any ensemble. A practical example of transeasonal fashion, this getup is an essential when spring comes. As a 30-something Millennial guy, you want to start dressing more maturely. If that's the case, outfits like this come in useful.