A long sleeve t-shirt and charcoal jeans are among the key pieces in any guy's functional off-duty collection. On the fence about how to finish off this ensemble? Round off with oxford shoes to amp it up. During the winter months, when warmth is a must, it can be easy to surrender to a less-than-stylish ensemble. But this ensemble is a vivid example that you totally can stay toasty and remain stylish at the same time in the winter months.