Nike Air Shox NZ are the responsive feel of Nike Shox. technology meets a lighter, faster, more nimble design in the Nike? Shox NZ SI mens running shoe. The four-column Nike Shox? cushioning unit in the heel delivers extreme energy return and total comfort, while a Phylon forefoot provides optimal cushioning with a smooth ride. The Nike Shox NZ White Grey is built using a one-piece upper construction partnered with a Ghillie lacing system that wraps your foot to the mid-sole.