These jeans do run very big. I ordered a size 2 and they were falling off of me by the end of the day.  I am disappointed because I have a very old pair of these that were hand-me-downs from my cousin. I love them so much that I wanted to order a new pair. Even though they are both size 2, the old pair fit snug and perfectly and the new pair are huge.  I wish they came in size -2.