Infuse personality into your day-to-day repertoire with a grey herringbone overcoat and navy chinos. Brown leather derby shoes are an effective way to infuse a bit of elegance into your look. As you can see, this combo is a really good option, especially for transitional weather, when the mercury is dipping. As you move into your 30s, you probably want to start dressing more like a mature gentleman. In this case, combinations like this are a lifesaver.