Putting together a dark brown crew-neck sweater and dress pants will hallmark your sartorial prowess. Inject a mellow vibe into your outfit by wearing white canvas low top sneakers. As you can see, it's super easy to look seriously stylish and stay snug when chillier weather arrives, thanks to this look. Just because you're in your 40s, doesn't mean you can't dress fashionably, and this outfit demonstrates just that.