Just received my Neria this week. I wear an 8 to 81/2 in regular shoes but order my crocs in a size 9. These are not too big for me. In fact I have a high instep and at first I didn't think I would be able to wear these with socks, but I can (and they are not thin socks). They are snug around the middle of my foot because of my instep and the way the shoes are made, but they are not uncomfortable. I did not find them to be bigger than any of my crocs. I wish they had been a tiny bit wider.