Join House Slytherin While most of the big time heroes of the Harry Potter movies are members of House Gryffindor, there are certainly tons of great characters in both movie franchises who call House Slytherin home. So whether you grew up with the Harry Potter movies, or you’ve become a fan of the prequels, this Deluxe Adult Slytherin Robe might just be the perfect fit. It’s officially licensed to look like authentic movie costume gear, and available in a wide range of adult sizes. Trimmed And Timeless One of the great things about House Slytherin is that it has a rich history of powerful wizards and tons of intrigue. The fact that this Deluxe Adult Slytherin Robe is officially licensed speaks not only to it’s authentic look, but also the high-quality fabrics it is made from. Created out of professional-quality polyester-based fabrics, trimmed in serpentine green and emblazoned with the crest of House Slytherin. It will have you looking like you just stepped off the silver screen and onto the floor of the next cool costume party or cosplay event.