A charcoal blazer and jeans are a combination that every modern man should have in his casual sartorial arsenal. Jazz up your outfit by wearing black leather slip-on sneakers. When you're having one of those gloomy fall days, sometimes only a cool outfit like this one can get you to face the outside world. Those who are dubious whether you can still sport cool casual outfits as you slip into your 60s, you have your answer.