The latest update to TOPO's high-cushion neutral trainer, the Phantom 4 delivers an even more cushioned, responsive, and comfortable ride. The all-new upper, midsole, and outsole design gives the shoe a sleek, dynamic look. Now offering a 35-30mm platform, Phantom 4 provides extra cushion. ZipFoam™ compound is lighter, softer, and more responsive than ever. The Topo Athletic Phantom 4 is perfect for daily miles, running, walking, and all-day wear. You and the Phantom 4 are the perfect match.