I'm 72, 25 lbs overweight, my knees bothered me constantly ...I've spent a small fortune over the last few years (Dr. Scholls, mostly), but these insoles are much better built, hold up far better, and do an amazing job ... true, they cost a tad more, but they sure are worth it !!! ... I remember when I purchased these I was able to talk with a knowledgeable sales lady that helped me tremendously ... I will continue to use these 'cause they work... Period ! Jim Wolf Wadsworth Oh.