Honestly my expectations were pretty low on these due to past experiences with other brands, but I really like these shoes.  My purpose is for a slip-on boat/camping shoe.  Something that was easy to wash or hose off that would dry quickly.  These are perfect.  I wear a size 12 for my everyday shoes and that's what I ordered for these.  They fit perfectly, not too tight or too loose.  I wouldn't call them supportive in any way as the fabric around your foot is thin and stretchy, which is great for airflow, but don't expect a lot of lateral support.  The foot bed is perforated to allow water to drain and airflow, but it will also allow dust and fine dirt to enter the shoe, so if you're in a dusty/dirty environment your feet will get dirty.  Hose the shoe and your foot off and you're good to go!