For a foolproof smart casual option, you can never go wrong with this combination of a beige trenchcoat and a denim jacket. And if you need to immediately tone down your ensemble with one single item, introduce black and white canvas high top sneakers to the mix. When it comes to dressing for unpredictable fall weather, nothing beats a kick-ass look that will keep you comfy and looking your best. Like this idea for your styling lineup as a man in his thirties?