These folks claim better alignment, less fatigue and that your knees, back etc. will all thank you once you use their product while riding. Well I'm more concerned about when I walk. So I'm at interbike and Esoles is offering a free evaluation. Atypical with any medical evalation, I have an extreme case. The case this time is a colapsed arch, the worst she had seen at the whole show and in a long time. (To bad there wasn't a prize) Well these Esoles are pretty pricey, but I suffer from knee, and back pain, and generally feel like I'm 85, so it might be worth it. The only question is have any of you other duck footed folks gotten any sort of relief from a shoe insert be it Esoles or another brand?