I have always wondered about the Crocs hype so I finally got a pair to try.  Wow, AMAZING!  I ordered a men's size 5 (women's size 7) for my normally size 7.5 feet (per the Crocs website, order 1/2 size DOWN).  It's a great fit with wiggle room in the toe.  The shoes are very light and I walked about 1/2 mile in them without any blisters or friction spots.  The ventilation holes around the front edge was adequate to keep my feet from sweating.  Also the top of the shoe (no holes) provides protection from wet lawns.  Last, the strap can be rotated onto the front toe box so you can also wear them as clogs.  I love them and recommends them to everyone.