For a look that's absolutely GQ-worthy, consider wearing a tobacco corduroy shirt jacket and a charcoal turtleneck. All you need now is a pair of dark purple leather casual boots to complement your ensemble.
Charcoal Turtleneck with Tobacco Corduroy Shirt Jacket Outfits For Men
So as you can see, it doesn't take that much work for a man to look casually neat. Rock a tobacco corduroy shirt jacket with a charcoal turtleneck and be sure you'll look amazing. A pair of brown suede desert boots looks right at home here.