More shock absorption means less shock to feet and joints. No other material offers more shock absorption than PORON® cellular urethanes. In side-by-side drop weight tests, PORON materials outperformed vinyl sponge, neoprene sponge, sponge rubber, latex foam and solid viscoelastic which is why PORON materials offer the best cushion against impact.
Maximum retention of comfort and flexibility. PORON urethanes are made without plasticizers which means they won’t shrink, become brittle or crack with age. PORON urethanes retain “like-new” softness and flexibility, resisting the tendency of other cushioning materials to bottom out and take a permanent compression set. This results in maximum comfort for the life of the shoe.