The Thief Costume is a costume available for Sly Cooper in Sly Cooper: Thieves in Time that "is rumored to be the outfit of a real genie." It formerly belonged to Salim al-Kupar, but was lost in a bet on a camel race. Sly had to get the outfit back so he could gain Salim's trust that the Cooper Gang are trying to help him. He had to steal three priceless gemstones and give them to a snooty salesman that would not leave his post.