Teaming a white crew-neck t-shirt with black dress pants is a smart choice for an effortlessly stylish look. A pair of white leather low top sneakers instantly ups the wow factor of your ensemble. During the winter months, when practicality is above all, it can be easy to surrender to a less-than-stylish outfit. However, this outfit is a vivid example that you can actually stay comfortable and remain stylish during the winter months. As you're heading into your 30s, you probably want to start dressing more like a mature gentleman. That's when ensembles like this are a fail-safe option.