Love these slippers because they're warm and easy to slip on.  The down side is
they're a bit loose around the ankles. I normally wear a size 9 1/2.
 I went by a previous review and ordered a size 10 since the don't sell 1/2 sizes.
The bottoms are pretty stiff so my foot kept falling out when i walked.
Had to return the 10 and get a 9.  It fits wonderfully with or without socks.
These slippers stand up to walks to the garbage can outside.  I even wore
them driving once, pretending they were Uggs.  The price is much less than most
slippers of this quality.

UPDATE: July 11, 2011
I still love these slippers but now know another reason to buy a size down
instead of up.  The warm fluffy lining gets squashed down in time and therefore the
slippers get looser on your feet.