This is pretty had and sturdy material

This is pretty had and sturdy material. There is good support and cushion on the heal and the front just below the toes. the arch support is hard and it provides enough support for running.Its quite thick near the heal to provide a nice depth. This can easily replace the existing insert in the shoe which extends the life of the running shoe by a few months. Overall this is perfect insert for running shoes. I just wish there was a little bit more of the gel type material.

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