The new Phantom 4, our neutral model with maximum cushioning, offers an even smoother, more responsive, and more comfortable run. The new design of the upper, midsole, and outsole gives the shoe a flowing and dynamic look. We have increased the sole height by 2 mm, allowing us to achieve a platform of 35 to 30 mm for even more generous cushioning. Our ZipFoam™ foam is lighter, softer, and more responsive than ever before. The Topo Athletic Phantom 4 is perfect for your daily outings, whether running, walking, or all-day wear. You and the Phantom 4 make a perfect duo. Together, nothing can stop you.