I went to Good Feet 6 years ago in Colorado Springs,CO and purchased 2 year aches supports. They lasted about three years. I do a lot of walking on concrete and was very happy the improvement they made in shoe ware and comfort. I replaced them with life time arches and after 3 years just failed. The People in the Tempe, AZ store were very helpful and replaced the $350 arches for $13 dollars.