UPDATED:  I bought thicker sheepskin inserts and that made these the best slippers ever.  I even bought a second pair.  They are fabulous...upping to 4 stars.

FIRST COMMENT: I really like these boots, but when they rub together they make that noise of nylon on nylon .  Doesn't bother me but to hubby it's like fingernails on a blackboard.  Not that I sit around rubbing my feet together, but sometimes your feet cross, ya know?

Super warm but the bottoms are thin.  I bought sheepskin insole inserts and that did the trick, although they scoot around inside a little bit.  These are not for wearing outdoors - indoors only.