I'm glad I read the previous reviews before buying these: they do run pretty big. I'm usually a size 8, I ordered a 6 and while they fit perfectly when I first put them on, they're much much looser by the end of the day. It's kind of unfortunate that they get sort of saggy after several hours but this does mean that these are extremely comfortable jeans. The wash of these is also surprisingly nice and I appreciate that they're long enough for my extremely leggy 5'10ish self. For me the trade offs are worth it.