After the dog ate my favorite slippers I was looking for a comfortable replacement.  The description looked like this would be it.  Unfortunately the portion under the ball of the foot is not nearly as soft as the part over the foot. On the positive side it is the correct length for the stated size and it adjusts easily for my narrow foot. If it had good cushioning under the foot it would be great.  The sole is slightly flexible, but not as flexible as a spa slipper would be expected to be.  The rubber sole is substantial enough for a quick trip outside to get the mail. It is made in China.
The instructions with the slippers say to spot clean, but my cream colored ones were too dirty for that any more so I decided to wash them gently in the sink.  I soaked them in a detergent and oxyclean solution for about half an hour, then swished them gently and rubbed dirtiest spots. I then rinsed well and rolled them in a towel pressing to get out as much water as possible; they took a few days to dry on top of the frig, but look fine and did not fall apart.