I have never had to send anything back from Amazon before. I read the other reviews that said they were a bit too big and I should have listened. I tried them on as soon as I got them and walked around my apartment. I immediately put them back in the box and am returning them. I could pretty much fit my whole hand in the shoe while wearing them. I can tell why people love the shoe though as they are rather cushy. I will be buying another pair... probably in a size smaller and a different style of fitflop.