Big! Yes, previous reviews advised to size down but since the Crocs Jaunt Shorty boot size 5 (my usual Crocs size) fitted well I thought I should stick to the same. Mistake. Also, despite having an inner sole it was hard. I prefer my Crocs Jaunt Shorty to this style. I am keeping it because it too much of a hassle to return and anyway, the price was good. Its probably ok for gardening which is why I bought it.