Topo Athletic Phantom 4 Road Running Shoes - Men's Stone/Black 7.0 US. The fourth generation has a new 35 x 30 mm stack height providing an additional 2 mm of cushioning. Topo Athletic ZipFoamTM midsole delivers a lightweight and responsive ride. The improved aesthetic offers a more dynamic and sleek design. The OrthoLite Performance Insole provides a soft step-in feel. Specifications for Topo Athletic Phantom 4 Road Running Shoes - Men's: Manufacturer: Topo Athletic Gender: Male Age Group: Adults Heel Height: 35 mm Boot Style: Road Running Shoes Activity: Running Activity/Occasion: Daily Activity Insole Material: Ortholite Seasonal/Temperature Use: Winter Weight: 9.3 oz Outsole Material: Rubber Midsole Material: Zipfoam Stack Height: 30mm Package Contents: Topo Athletic Phantom 4 Road Running Shoes - Men's Topo Athletic M087-070-STNBLK: Phantom 4 Road Running Shoes - Men's Stone/Black 7.0 US