The latest update to our 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. Weve increased the stack height by 2mm, now offering a 35-30mm platform, providing extra cushion. Our 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. Together we are unstoppable!