If you're a fan of laid-back combos, why not opt for a grey turtleneck and jeans? And if you wish to effortlessly dress up your look with shoes, complement your outfit with black leather casual boots. If it's one of those dull fall days, what better to brighten it up than a sharp outfit like this one? This getup should erase any doubts you had about dressing elegantly in your mid-20s.