On my third pair. Keep buying them hoping and praying the soles will wear longer. They don’t. The protruding squares wear down after about three months of use in the highest wear areas of the sole. Original materials indeed. Everything else about this shoe I love, love, love. Style, colorways, fit, comfort. Very comfortable without too much cushioning to the point of not being able to feel the pavement. Might have to move to the 89 Pegasus or Internationalist just because of the sole.