I bought a pair of these slippers 2 years ago - got an 8 - it was a little too tight at first but they stretched.  I LOVED THEM and was upset when I had to finally trash them after several times of taping the soles back on.

I bought another pair this fall - same size - 8 - different color this time.  They are way too big to wear without heavy socks and they aren't even broken in yet.

I am very disappointed.  I bought a pair of EMU slippers last year - also way too big and wider than these are.