I've had these for several months now and I love them. Having paid attention to the wisdom of previous reviewers, I do not wear them outside and so, have not noticed any appreciable wear and tear.

Since I loved them so much, I bought a second pair for my 70 year old mother. She's very happy with hers, since she's been suffering from bad circulation and constantly cold feet. On particularly cold nights she has worn them in bed and has found that her feet don't ache the following morning as much.