Whilst 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!This Harry Potter Slytherin Crest Men's Christmas T-Shirt, exclusive to site customers, is a product filled with style. Designed by those with an eye for fashion, it features a bold graphic on a Black tee.(The use of ethical sources has been employed for this product, and considerations such as these will make you glad that you shopped at this site.) 100% cotton teeWashing-machine friendlyPrior to tumble-drying, please refer to the labelMedium-thickness garmentAdditionally, our measurements make considerations for different bodies, both male and female. If you prefer baggier clothing, we recommend that you order a larger size.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!