Question: what is the difference between ultra boost and nmd?
Answer: The NMD's feature either a mesh or Primeknit upper, while the Ultra Boosts always feature a Primeknit upper. Primeknit provides a luxe feel, and as the Ultra Boost features it 100% of the time (both on the Caged and Uncaged models) while the NMD only features it occasionally, the Ultra Boost takes the cake.