Topo Men's Phantom 4 Waterproof Road Running Shoes Size:US 10.5 Hydration system compatible with an

Hydration system compatible with an opening for drinking tube at the top

Training: All-Systems GNSS mode + Single-Band

The Short Version

A good run is about being—and staying—in the zone

This loss of electrolytes can also be the cause of muscle disturbances such as cramps

Topo Men's Phantom 4 Waterproof Road Running Shoes Size:US 10.5 Hydration system compatible with anProduct Overview 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