Introducing the NM600 by Tom Knox. Based on an early 90’s NB indoor court shoe from our archives, the Numeric 600 features a Fuel Cell midsole to maximize energy efficiency, while the toe has been reinforced with our Fantom Fit technology for durability and fit. The moldedOrtholiteinsole boosts comfort while theNdurancerubber outsole allows for just the right amount of flexibility and grip