For a laid-back ensemble, wear a navy crew-neck t-shirt and grey sweatpants — these items work beautifully together. For something more on the sophisticated end to finish this getup, add a pair of white and navy leather low top sneakers to the mix. During the winter season, when warmth is imperative, it can be easy to settle for a less-than-stylish ensemble. But this ensemble is a clear example that you can actually stay snug and remain stylish in the winter season.