If you put practicality above all else, this relaxed casual combo of a black and white houndstooth overcoat and black skinny jeans is for you. If you need to easily level up your ensemble with one item, add a pair of dress boots to the equation. So as you can see, it's extremely easy to look on-trend and stay cozy when cooler weather hits, thanks to this outfit. This pairing proves that heading into your 30s is no reason to stop dressing casually.