These slippers are warm, cozy and cute.  Excellent, non-slip soles.  The reviewer who said they run small was correct; I wear an 8 in most slip-on sandals/slippers, and my heel comes right to the back of the sole in these (Size L).  If you wear a 9, you should definitely order an XL.  The sheepskin lining is so soft and comfy--there truly is nothing like the real thing!