At first I ordered a size large because I am a size 14 in jeans but found that these fit more like sweat pants and the large was actually too big. I then returned them, which by the way the seller was SUPER friendly, and I ordered a size medium. They fit perfectly and look like real jeans...mostly...haha the back pockets are really low down and will take some getting used to but i love how the look and feel. They also come with a drawstring should they get loose, but wearing them all day they still hold its shape...much better than the ones you see on tv.