A must-have for the holidays.

Holiday party season is here! Bring out your tacky (but cute) Christmas sweaters and sequined dresses. The finishing touch to a festive ensemble? Knee-high boots — and Keira Knightley understood the task.

Spotted in New York City, Knightley wore a playful fit that included a lace peek-a-boo blouse, scalloped top jacket, and velvet wide-leg shorts. We could write novels about each of them, but it was her sexy knee-high boots that looked like they were taken from a Hallmark set that caught our attention.

Modatope foldover knee-high boots

This statement shoe boasts a holly red hue, sparkling finish, and square toe, while its slouchy shaft and cuff design set it apart from more traditional versions. The two-tone chunky heels also made her legs look longer.

mark fisher fadila knee high boots

Mark Fisher offers a very accurate analogue with similar bold elements. What are the main differences? I would say that the pointed toe adds a more sensual touch as opposed to the square toe of the Knightley.

Steve Madden Corenne foldover boots

But block heels aren’t the only way to achieve style. This Steve Madden Corenne Foldover Boot comes with a wedge heel. You might think, “It’s the early 2000s,” but Kate Hudson and Gisele Bündchen are claiming the look…and so can you.

Jeffrey Campbell Hot Lava High Stretch Boots

But let’s be honest. The magic of the holidays is in the colors themselves, so copy Knightly’s festive outfit in Jeffrey Campbell’s Hot Mule Boots. It completely eliminates the folding element, but still conveys the aesthetic with a square heel and toe.

Styling a new pair of celebrity-approved shoes doesn’t have to be difficult. Follow Nightly’s fashion advice and choose a cozy, cashmere-like skirt like this J.Crew find and throw it on with a sophisticated cardigan. Wear any kind of fitted sweater and cropped wide-leg jeans to create a fool-proof outfit ensemble.

Keep scrolling to see more maroon knee-high boots, including both cuffed and straight designs.

Steve Madden Smith knee-high boots

Reformation Remy knee-high boots