Keep yourself warm but your style cool this winter with Zavvi\'s officially licensed knit collection. We have carefully selected designs of your favourite movies, superheroes, games and much more to keep your sung this winter. Making a great seasonal gift or a perfect treat for the whole family. Christmas at Hogwarts would be magical. Levitating Christmas trees and a feast big enough for the entire school are just some of what to expect at the magical place! But first, you need to get there. There\'s only one way to Hogwarts, all aboard the Hogwarts Express! Kids Knitted Harry Potter Christmas Jumper. Unisex design Please refer to our custom size chart for your perfect fit 100% official Harry Potter merchandise 100% acrylic Made in the UK