These were too small!  It would cost more than 1/2 the price to return them, so I'll give them away.  The order was placed by my shoe size, but they were off.  I wore them for 2 hours, and had a blister form and pop.  I tried wearing socks, but being too small, the rubber grabbed the sock material and pulled it too tight.

I love my old crocs, but  I don't think I'll buy crocs online again.

This style does require socks, since they got quite hot.