The easiest way to perk up your look? Today's fashion tip is incredibly easy: put a cap on it. We first started seeing sporty hats last year, and from the looks of these polished street stylers below, the trend is still going strong. Not only will this trend add a tomboy tilt to any look, it's the perfect remedy for bad Winter hair days. Try pairing a sleek leather rendition with a floral or printed dress for a fun play on ladylike-meets-sporty, or style a bright baseball cap with boyfriend jeans, a slouched tee, and oxfords for an effortless, off-duty look. Any way you spin it, it's a no-brainer in our style books. Shop our editors' picks below to add an instant pop of cool to your cold-weather getup now.