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. With an increased stack height by 2mm, now offering a 35-30mm platform, providing 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.