Probably the most comfortable pair of slippers I have ever owned. They were very tight out of the box even though I boughty usual size and I was concerned I would need to go a size up, but the instructions did say to wear them a few days and let them break in. They loosened up to the point I can wear them comfortably with socks. Really like these slippers.UPDATE: Probably the only criticism I have is that the soles are not very sturdy. After 6 months of wear I had to get a new pair because they split.