A grey crew-neck sweater and a white crew-neck t-shirt are essential in any gent's great off-duty sartorial collection. For a more polished finish, why not introduce a pair of black suede desert boots to your outfit? So as you can see, this look is a vivid example that good style and dressing smartly for the winter season are not mutually exclusive. This outfit proves that in your mid-20s your style options are pretty much limitless.