Pair a white and blue crew-neck sweater with chinos for a comfy getup that's also well put together. In the winter season, when practicality is paramount, it can be easy to settle for a less-than-stylish ensemble in the name of convenience. But this ensemble is a practical illustration that you totally can stay snug and remain equally stylish in the winter season. A safe bet for gents in their thirties after a more mature look.