I found this product online on a very skeptical whim. He got the larger size and he wears a size 13 shoe so it JUUUSSST fit his foot. Aside from that, I would definitely order from them again. I'm definitely pleased that this was a real company, that my product was not fit for a guinea pig after being advertised for a human being and that they actually arrived before Christmas. I got them for my son and he LOVES them! That's what matters most to me!