Why not reach for a blue denim shirt and navy jeans? These two pieces are totally practical and look awesome married together. Dark brown leather work boots can effortlessly dress down an all-too-classic look. Piecing together a well-coordinated getup can be challenging on its own. Add uncomfortably cold temps into the equation, and the whole thing becomes even more difficult. No worries, this here is your winter style inspiration. Gentlemen who are curious how to rock cool off-duty dressing as you turn 30, you have your answer.