It's just a completely synthetic insole is all, straight down to the cork filler, with the gemming glued right to it. From the model i dissected, the poron is a two layer memory foam & flexible fiber insole. I don't like the idea of a flexible synthetic insole is all, doesn't sit well with me. To each his own though, my intention was not to start a fire in this thread.
7/21/14 at 3:28pm