This shoe? It's built to be different. Packed with court-ready tech, the Zion 4 helps power an explosive game. A full-length Air Zoom unit and drop-in midsole give you the responsive cushioning your high-energy vertical movements demand. Stay Grounded With a wider surface area than previous versions, the Zion 4 uses a cupsole frame for added stability, helping you feel grounded no matter how you're moving. Built for High-Flying Dunks A removable drop-in Cushlon 3.0 midsole helps support your explosive upward movements, letting you go full force until the final buzzer. Air-Cushioned Comfort Full-length Air Zoom unit helps provide responsive cushioning for when you fly to the hoop and land back on earth.