Combining a grey overcoat with black dress pants is an on-point pick for a classic and polished outfit. Introduce a pair of white leather low top sneakers to the equation to infuse a sense of stylish nonchalance into your getup. So as you can see, this combo is a really smart idea, especially for transeasonal weather, when the temps are dropping. As you're moving from your 20s to your 30s, you probably want to start dressing more professionally. In this case, ensembles like this are ideal as inspiration.