If you're searching for an off-duty yet dapper outfit, consider wearing a black crew-neck sweater and blue jeans. Putting together a standout getup can be a bit of a challenge on its own. Add cold temperatures into the equation, and the whole thing becomes even more difficult. Don't despair, this here is your wintry inspo. Men who wonder how to stay fashionable as you slip into your 30s, you have your answer.