One of the coolest ways for a man to style out such a hard-working item as a shirt jacket is to wear it with a white turtleneck. Complement this getup with a pair of black and blue athletic shoes to avoid looking too formal. On not-so-bone-chilling days, wear a variation of this transitional ensemble and look absolutely awesome. Just because you're in your 40s, doesn't mean you're allowed to give up on fashion, and this combination illustrates just that.