This is just a replacement for a Propet shoe that will "work for years and miles"! (I also keep colors and clothes "in circulation".) They also withstand a lot of things very well - since I go for walks a lot (forest, rain, etc.) - and have "solar stiffeners" which I use "a little put on". worn 'shoes' - to ride my recumbent trike. (I can't ride - after a stroke in 2001 my right side was "mostly paralysed"). I've been asked by others - and I've shared the information too - (and others have since received them.) Enjoy and 1/2!