At first I thought it was a stain but then I tried rubbing it off with water and it didn't work. Also it doesn't feel any different than the rest of the bag, whereas if it was a stain it would probably feel harder. It looks like its a discolouration of the fabric itself. What do you all think? What to do, what to do! I've only had this bag since June. Taken with flash: http://img.photobucket.com/albums/v84/ginger98/discolour.jpg Without flash: http://img.photobucket.com/albums/v84/ginger98/discolour2.jpg http://img.photobucket.com/albums/v84/ginger98/discolour3.jpg Theres also a little bit at the front of the bag.