Ok... in the episode where the X-Men are sent to a village where the villagers are trying to kill a so called demon (NightCrawler), look for the part where Rouge is at the table eating with the monks. You notice she is wearing a robe like the monks, but when she stands up and rushes for Gambets room she has a ski suit on, but as soon as she opens the door to Gambets room she is wearing the robe again.