For something on the classic and casual side, you can easily dress in a camel overcoat and a black quilted gilet. Don't know how to finish your outfit? Wear a pair of black chunky leather derby shoes to dial it up a notch.
Black Quilted Gilet with Camel Overcoat Smart Casual Outfits
You'll be amazed at how easy it is for any gentleman to get dressed like this. Just a camel overcoat married with a black quilted gilet.