If you're on the lookout for a casual and at the same time dapper outfit, marry a grey sweatshirt with navy chinos. If you want to easily tone down this look with one single piece, why not opt for black athletic shoes? It's a viable choice when it comes to putting together a standout outfit for weird fall weather. Think you can't pull off modern casual style as you reach your 50s? This combo is a powerful demonstration of otherwise.