I don't care for slippers with soles as it just feels like a pair of shoes to me.  I wanted a warm pair of slippers that felt like socks without actually being socks.  These are perfect.  The fleece-like lining is so soft, and very warm.  There's some kind of thin layer of rubber on the bottom to provide traction, which I can barely feel in bare feet and not at all if I am also wearing socks.

My only criticism of these is that the print is not as clear as the picture.  The sheep are blurred like an small resolution image made too large.  However, it's not enough to turn me off these slippers and I will be ordering additional pairs. Recommended!