I never had problems with my feet until I started working where I was walking on hard concrete floors all day. My feet were painful each night and towards the end of the week I felt wounded and wouldn’t do any thing on my day off except keep my feet up. I tried other insoles but last week I tried Spenco Heavy duty insoles. I didn’t notice anything until the end of the week when I realized I wasn’t in pain. I had completely forgotten about the insoles because my feet weren’t painful. Once I realized that a week had passed and I was still going strong I thanked my co-worker for recomending Spenco. I am flabergasted that the insoles work so well. It is my day off and I am going for a run. I now want to see everything Spenco makes. It has turned me around completely and I am so happy that I no longer have painful feet. It’s not something you think about until you don’t want to walk because you are in so much pain. Thank you very much. Suz