J. Crew Fair Isle Knit Tie
Buy It Now at J. Crew, $60

Don't see yourself as a sweater sort of guy? Make any kit instantly festive with a fair isle tie. Wear it with a crisp white shirt, well-worn jeans or chinos, and an unstructured sportcoat for an easy look. Make it more rugged by throwing a denim jacket on instead, and if you want, you can even layer that underneath a tweed blazer.