Poron – Poron is considered a high performance cushioning material for multiple footwear and fashion applications. As a urethane, Poron is available in a wide variety of colors, thicknesses, densities and surface textures to accommodate almost any activity, from everyday use to the rigorous demands of high-impact sports and exercise. – The highest degree of impact shock absorption means less impact on feet and joints. In side-by-side drop weight tests, poron materials outperformed vinyl sponge, neoprene sponge, sponge rubber, latex foam and solid viscoelastic. – A breathable layer to help feet stay dry and cool PORON urethane materials form permeable layers that draw water vapor and perspiration away.