I thought I'd give it a try because I have a problem with my feet and I have to say they helped me a lot. I don't know how long they will last, but I really don't care. I tried on about 30 different shoes and this was the only pair that gave me relief. If they fall apart I'll probably buy another pair. To update. Owned for 6 months. Very good shoes, especially if you have foot problems. I'll buy another pair of these.