Zavvi - The Home of Pop Culture Or perhaps in Slytherin, You'll make your real friends, Those cunning folk use any means, To achieve their ends. -Harry Potter and the Philosopher's StoneThis Harry Potter Slytherin Geometric Sweatshirt (exclusive to our site) is ready to overhaul your outfit. Realised by our designers, it features a pronounced graphic on a Black sweatshirt.(All the materials used in our range have been supplied by ethical sources, so you can comfortably throw away any concerns as you enjoy your brand-new piece of clothing.) Polyester and Cotton BlendCompatable with washing machinesCheck the label for tumble-dryer instructionsHeavy ThicknessEqually, sizing is important, and we've addressed this with a relaxed fit. It's recommended that you order a larger size if you prefer a baggier fit.Step into the magical realm with this incredible range of Official Harry Potter merchandise! Do you wish to show your love of your chosen House? Or are your desires geared for powe