It's also works in conjunction with ZoomX ... Nike's latest breakthrough in Air is emphasized by rendering the unit in orange on the launch "Airscape" colorway that's otherwise predominantly white.

I tested the shoe in a white colorway, which wouldn’t be my ... The midsole of this shoe has Nike’s ZoomX midsole foam, surrounded by ReactX foam for comfort and protection.

Targeting distances from 5K to the marathon, the Vaporfly 4 is still powered by Nike’s signature combination of ZoomX foam ...