& 20 years ago all they had was EVA & Polyurethane. Time moves forward. What was considered great 10 years ago is old technology today. There is a reason that Zoom Air is in every Nike shoe today & Max Air is not or Boost is in many of the top end Adidas vs Adiprene, etc. Now all they need to do is include it in the forefoot as well as keep it in the rearfoot. They have shown they can do it in the Zoom Ultras.