Harry Potter Child Harry Potter Professor Mcgonagall Costume Head of Gryffindor house and the most powerful witch in Hogwarts, our Professor McGonagall costume is perfect for both children and adults alike. Costume comprises of a dress, cape and coordinating hat. Available in sizes 4-6 years, 6-8 years, 8-10 years, 10-12 years 100% Polyester excluding trim Wash at 30 degrees Kids