A black overcoat and a cardigan are absolute mainstays if you're picking out a smart casual closet that matches up to the highest menswear standards. Rounding off with grey athletic shoes is a surefire way to bring a hint of stylish effortlessness to this ensemble. On not-so-bone-chilling days, you can sport this summer-to-fall outfit and look absolutely awesome. Those wondering how to sport modern off-duty dressing as you work your way through your 20s, you have your answer.