Zavvi - The Home of Pop CultureWhilst it isn't one of Mrs Weasley's famous knitted jumpers... we are certain that this one with the Slytherin crest across it will certainly keep you warm enough, as if by magic!The inspired Harry Potter Slytherin Crest Women's Christmas Sweatshirt (exclusive to our site) is ready to overhaul your outfit. Personalised by our industry veterans, it sports an original print on a Black garment.(Our products are all ethically sourced, so you can feel comfortable as you wear your new apparel.) Polyester and Cotton MixThis product can be used with washing machinesCheck the label for tumble-dryer instructionsHeavy Weight Cotton With sizing in mind, our items are made to be loose-fitting, suitable for women. If you'd like a slightly baggier fit, please order a size up.The magical world of Harry potter captured hearts of children and adults alike almost instantly. With the universe expanding every day, there is always more to discover!