This off-duty pairing of a white crew-neck t-shirt and light blue print jeans is a real life saver when you need to look dapper but have no extra time. Enter red low top sneakers into the equation and off you go looking killer. As you can see, it's very easy to look seriously stylish and stay snug come colder weather, all thanks to looks like this. This outfit suggests how to stay stylish as you step into your 30s.