Go for a black shawl cardigan and dark brown chinos and you'll pull together a proper and classy outfit. Finishing off with olive canvas low top sneakers is a guaranteed way to inject an element of stylish effortlessness into this getup. Seeing as autumn is setting in, this ensemble is a nice option for in between seasons. As you can see here, as a gent in his 40s, you have a wide array of outfit options.