A black denim jacket and grey chinos are essential menswear items, without which no wardrobe would be complete. Not sure how to finish this outfit? Round off with black leather oxford shoes to spruce it up. So so as you can see, it's an on-trend, not to mention spring-friendly, outfit to have in your transeasonal rotation. As a 30-year-old, you probably want to start dressing maturely. In this case, looks like this are perfect as inspo.