This combination of a cardigan and tobacco chinos makes for the ultimate laid-back style for today's gentleman. If you want to effortlessly dial down this look with shoes, why not introduce dark brown leather sandals to the equation? Undoubtedly, it's easier to work through a warm summer day in a light and breezy combination such as this one. Wondering how to nail casual outfits as you head into your 30s? This combination is the perfect answer.