The Nike Shox R4 is the original Nike Shox running model, and sprung on to the scene in 2000. They were constructed with innovative Shox technology, which was inspired by the remarkably springy indoor running track at Harvard. Small high-density PU Foam columns in the heel were designed to absorb impact from heel strike during athletic activities, and "spring back" to add more power to your stride. A wide array of Nike sneaker models use Shox technology today, but the original models were the R4 runner, BB4 court sneaker, and the XT4 cross-trainer.
Overall Rating for Nike Shox R4
Took me a long time to find these shoes in 9.5 size with a great price. thanks sneakerhead!!!!!!
Thanks Sneakerhead for the fast shipping and great customer service!