The NMD merges the best of adidas innovation with progressive street-ready design. Modern construction and archival adidas technologies come together with the sleek, running-inspired NMD XR1 PK. These shoes have a breathable and flexible adidas Primeknit upper, for an enhanced fit and a futuristic look worthy of today's streets. A TPU cage on the midfoot adds support during urban adventures, while energy-returning boost keeps you light on your feet.