I just received these slippers today.  As far as the size goes, they do run small.  However, I usually do buy this type of slipper a size smaller than I normally wear, since they do stretch out after awhile.  Since these Tamarac slippers run small, I bought my normal size (6).  They are a little tight, especially the right foot.  However, this is perfect, since I know that they will stretch some.  My disappointment is that the lining is not all shearling.  The tag inside the slipper says that the lining is 70% shearling and 30% acrylic.  As far as I am concerned, this is just plain false advertising.  Both the description on Amazon and the slipper box itself state the the lining is shearling.  Only the small tag inside the slipper and the sticker on the bottom sole of the slipper state that the lining is a combo of both shearling and acrylic.  I guess the manufacturer thinks that if there is any shearling at all in the lining, it is okay to lead the consumer to think that it is all shearling.  I am going to keep the slippers, because they do fit.  However, the main reason I got them was because I thought they had an all shearling lining.  Only pure shearling stays comfortable in both warm and cold weather and prevents your feet from sweating, so I know I will probably get sweaty feet.  I don't know how they will hold up, so I can't speak to that.  I just know that I won't be ordering from this company again.

I do know that the company is good in that they stand behind their product.  I had a problem in the past with a pair of slippers, and Tamarac sent me a replacement.  My problem now is that I just can't get past this false advertising thing.