For a casually cool outfit, marry a navy crew-neck t-shirt with charcoal jeans — these two items fit brilliantly together. Picking out a standout combination can be a bit of a challenge on its own. Add uncomfortably cold temps into the equation, and the whole thing becomes even more difficult. Don't despair, this here is your wintry fashion inspiration. Those who wonder how to pull off edgy off-duty dressing as you turn 30, you have your answer.