Surfacing in the same ‘Aspen’ offering that debuted on the UltraBoost Mid back in 2016, the collaborative Futurecraft 4D applies the same motif, but with updated Futurecraft technology. The mid-cut design was limited to only 800 pairs and innovates the Primeknit upper with criss-cross stitching on the heel. The Aero Green 4D Futurecraft midsole is designed to provide strategically placed cushioning.