Slytherin (Harry Potter) is one of the four Houses at Hogwarts School of Witchcraft and Wizardry, founded by Salazar Slytherin. In establishing the house, Salazar instructed the Sorting Hat to pick students who had a few particular characteristics he most valued. Those characteristics include cunning, resourcefulness, and ambition. Many Slytherin students tend to clique together, often acquiring leaders, which further exemplifies Slytherin's ambitious qualities
All other dresses of Slytherin, Gryffindor, Hufflepuff, Ravenclaw, click here.