Although they have some faults which will appear much later, they are the most comfortable slippers I have found for the price paid. This is the 2nd pair I've purchased. They wear longer then most that I have bought. Their faults will show up much later. I've picked tiny nails or tacks from the soles that have gone through and were hurting my feet as they were sticking into me. The soles completely separated from the shoe. Like I said, these faults came by much later in use. Guess nothing lasts forever.