I have the shayna crocs and love them, so I had high hopes for these.  They were too short, my toes hit the ends, although the shaynas fit fine in the same size.  Also, these have no ventilation, so just testing them out around the house, I got sweaty feet.  I had bought them for a disneyworld trip, so they won't do at all.  I can't imagine wearing them in the summer.