Why not consider pairing a navy crew-neck sweater with navy chinos? As well as super practical, both pieces look cool when paired together. Want to tone it down when it comes to shoes? Opt for white leather low top sneakers for the day. During the winter months, when practicality is critical, it can be easy to surrender to a less-than-stylish getup. But this getup is a good illustration that you can actually stay warm and remain stylish in the winter months. So if you're on the hunt for outfit inspo for dressing as you mature into your 30s, this getup is definitely worth saving for later.